31820880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:114

約数の個数: 320

約数和(自身を含む): 127991808

約数和(自身を除く): 96170928

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 31, 35, 39, 40, 42, 47, 48, 52, 56, 60, 62, 65, 70, 78, 80, 84, 91, 93, 94, 104, 105, 112, 120, 124, 130, 140, 141, 155, 156, 168, 182, 186, 188, 195, 208, 210, 217, 235, 240, 248, 260, 273, 280, 282, 310, 312, 329, 336, 364, 372, 376, 390, 403, 420, 434, 455, 465, 470, 496, 520, 546, 560, 564, 611, 620, 624, 651, 658, 705, 728, 744, 752, 780, 806, 840, 868, 910, 930, 940, 987, 1040, 1085, 1092, 1128, 1209, 1222, 1240, 1302, 1316, 1365, 1410, 1456, 1457, 1488, 1560, 1612, 1645, 1680, 1736, 1820, 1833, 1860, 1880, 1974, 2015, 2170, 2184, 2256, 2418, 2444, 2480, 2604, 2632, 2730, 2820, 2821, 2914, 3055, 3120, 3224, 3255, 3290, 3472, 3640, 3666, 3720, 3760, 3948, 4030, 4277, 4340, 4368, 4371, 4836, 4888, 4935, 5208, 5264, 5460, 5640, 5642, 5828, 6045, 6110, 6448, 6510, 6580, 7280, 7285, 7332, 7440, 7896, 8060, 8463, 8554, 8680, 8742, 9165, 9672, 9776, 9870, 10199, 10416, 10920, 11280, 11284, 11656, 12090, 12220, 12831, 13020, 13160, 14105, 14570, 14664, 15792, 16120, 16926, 17108, 17360, 17484, 18330, 18941, 19344, 19740, 20398, 21385, 21840, 21855, 22568, 23312, 24180, 24440, 25662, 26040, 26320, 28210, 29140, 29328, 30597, 32240, 33852, 34216, 34968, 36660, 37882, 39480, 40796, 42315, 42770, 43710, 45136, 48360, 48880, 50995, 51324, 52080, 56420, 56823, 58280, 61194, 64155, 67704, 68432, 69936, 73320, 75764, 78960, 81592, 84630, 85540, 87420, 94705, 96720, 101990, 102648, 112840, 113646, 116560, 122388, 128310, 132587, 135408, 146640, 151528, 152985, 163184, 169260, 171080, 174840, 189410, 203980, 205296, 225680, 227292, 244776, 256620, 265174, 284115, 303056, 305970, 338520, 342160, 349680, 378820, 397761, 407960, 454584, 489552, 513240, 530348, 568230, 611940, 662935, 677040, 757640, 795522, 815920, 909168, 1026480, 1060696, 1136460, 1223880, 1325870, 1515280, 1591044, 1988805, 2121392, 2272920, 2447760, 2651740, 3182088, 3977610, 4545840, 5303480, 6364176, 7955220, 10606960, 15910440, 31820880]

約数ペア:

[(1, 31820880), (2, 15910440), (3, 10606960), (4, 7955220), (5, 6364176), (6, 5303480), (7, 4545840), (8, 3977610), (10, 3182088), (12, 2651740), (13, 2447760), (14, 2272920), (15, 2121392), (16, 1988805), (20, 1591044), (21, 1515280), (24, 1325870), (26, 1223880), (28, 1136460), (30, 1060696), (31, 1026480), (35, 909168), (39, 815920), (40, 795522), (42, 757640), (47, 677040), (48, 662935), (52, 611940), (56, 568230), (60, 530348), (62, 513240), (65, 489552), (70, 454584), (78, 407960), (80, 397761), (84, 378820), (91, 349680), (93, 342160), (94, 338520), (104, 305970), (105, 303056), (112, 284115), (120, 265174), (124, 256620), (130, 244776), (140, 227292), (141, 225680), (155, 205296), (156, 203980), (168, 189410), (182, 174840), (186, 171080), (188, 169260), (195, 163184), (208, 152985), (210, 151528), (217, 146640), (235, 135408), (240, 132587), (248, 128310), (260, 122388), (273, 116560), (280, 113646), (282, 112840), (310, 102648), (312, 101990), (329, 96720), (336, 94705), (364, 87420), (372, 85540), (376, 84630), (390, 81592), (403, 78960), (420, 75764), (434, 73320), (455, 69936), (465, 68432), (470, 67704), (496, 64155), (520, 61194), (546, 58280), (560, 56823), (564, 56420), (611, 52080), (620, 51324), (624, 50995), (651, 48880), (658, 48360), (705, 45136), (728, 43710), (744, 42770), (752, 42315), (780, 40796), (806, 39480), (840, 37882), (868, 36660), (910, 34968), (930, 34216), (940, 33852), (987, 32240), (1040, 30597), (1085, 29328), (1092, 29140), (1128, 28210), (1209, 26320), (1222, 26040), (1240, 25662), (1302, 24440), (1316, 24180), (1365, 23312), (1410, 22568), (1456, 21855), (1457, 21840), (1488, 21385), (1560, 20398), (1612, 19740), (1645, 19344), (1680, 18941), (1736, 18330), (1820, 17484), (1833, 17360), (1860, 17108), (1880, 16926), (1974, 16120), (2015, 15792), (2170, 14664), (2184, 14570), (2256, 14105), (2418, 13160), (2444, 13020), (2480, 12831), (2604, 12220), (2632, 12090), (2730, 11656), (2820, 11284), (2821, 11280), (2914, 10920), (3055, 10416), (3120, 10199), (3224, 9870), (3255, 9776), (3290, 9672), (3472, 9165), (3640, 8742), (3666, 8680), (3720, 8554), (3760, 8463), (3948, 8060), (4030, 7896), (4277, 7440), (4340, 7332), (4368, 7285), (4371, 7280), (4836, 6580), (4888, 6510), (4935, 6448), (5208, 6110), (5264, 6045), (5460, 5828), (5640, 5642)]