20141940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 288

約数和(自身を含む): 77220864

約数和(自身を除く): 57078924

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 17, 20, 21, 26, 28, 30, 31, 34, 35, 39, 42, 49, 51, 52, 60, 62, 65, 68, 70, 78, 84, 85, 91, 93, 98, 102, 105, 119, 124, 130, 140, 147, 155, 156, 170, 182, 186, 195, 196, 204, 210, 217, 221, 238, 245, 255, 260, 273, 294, 310, 340, 357, 364, 372, 390, 403, 420, 434, 442, 455, 465, 476, 490, 510, 527, 546, 588, 595, 620, 637, 651, 663, 714, 735, 780, 806, 833, 868, 884, 910, 930, 980, 1020, 1054, 1085, 1092, 1105, 1190, 1209, 1274, 1302, 1326, 1365, 1428, 1470, 1519, 1547, 1581, 1612, 1666, 1785, 1820, 1860, 1911, 2015, 2108, 2170, 2210, 2380, 2418, 2499, 2548, 2604, 2635, 2652, 2730, 2821, 2940, 3038, 3094, 3162, 3185, 3255, 3315, 3332, 3570, 3689, 3822, 4030, 4165, 4340, 4420, 4557, 4641, 4836, 4998, 5270, 5460, 5642, 6045, 6076, 6188, 6324, 6370, 6510, 6630, 6851, 7140, 7378, 7595, 7644, 7735, 7905, 8060, 8330, 8463, 9114, 9282, 9555, 9996, 10540, 10829, 11067, 11284, 12090, 12495, 12740, 13020, 13260, 13702, 14105, 14756, 15190, 15470, 15810, 16660, 16926, 18228, 18445, 18564, 19110, 19747, 20553, 21658, 22134, 22785, 23205, 24180, 24990, 25823, 27404, 28210, 30380, 30940, 31620, 32487, 33852, 34255, 36890, 38220, 39494, 41106, 42315, 43316, 44268, 45570, 46410, 47957, 49980, 51646, 54145, 55335, 56420, 59241, 64974, 68510, 73780, 77469, 78988, 82212, 84630, 91140, 92820, 95914, 98735, 102765, 103292, 108290, 110670, 118482, 129115, 129948, 137020, 143871, 154938, 162435, 169260, 191828, 197470, 205530, 216580, 221340, 236964, 239785, 258230, 287742, 296205, 309876, 324870, 335699, 387345, 394940, 411060, 479570, 516460, 575484, 592410, 649740, 671398, 719355, 774690, 959140, 1007097, 1184820, 1342796, 1438710, 1549380, 1678495, 2014194, 2877420, 3356990, 4028388, 5035485, 6713980, 10070970, 20141940]

約数ペア:

[(1, 20141940), (2, 10070970), (3, 6713980), (4, 5035485), (5, 4028388), (6, 3356990), (7, 2877420), (10, 2014194), (12, 1678495), (13, 1549380), (14, 1438710), (15, 1342796), (17, 1184820), (20, 1007097), (21, 959140), (26, 774690), (28, 719355), (30, 671398), (31, 649740), (34, 592410), (35, 575484), (39, 516460), (42, 479570), (49, 411060), (51, 394940), (52, 387345), (60, 335699), (62, 324870), (65, 309876), (68, 296205), (70, 287742), (78, 258230), (84, 239785), (85, 236964), (91, 221340), (93, 216580), (98, 205530), (102, 197470), (105, 191828), (119, 169260), (124, 162435), (130, 154938), (140, 143871), (147, 137020), (155, 129948), (156, 129115), (170, 118482), (182, 110670), (186, 108290), (195, 103292), (196, 102765), (204, 98735), (210, 95914), (217, 92820), (221, 91140), (238, 84630), (245, 82212), (255, 78988), (260, 77469), (273, 73780), (294, 68510), (310, 64974), (340, 59241), (357, 56420), (364, 55335), (372, 54145), (390, 51646), (403, 49980), (420, 47957), (434, 46410), (442, 45570), (455, 44268), (465, 43316), (476, 42315), (490, 41106), (510, 39494), (527, 38220), (546, 36890), (588, 34255), (595, 33852), (620, 32487), (637, 31620), (651, 30940), (663, 30380), (714, 28210), (735, 27404), (780, 25823), (806, 24990), (833, 24180), (868, 23205), (884, 22785), (910, 22134), (930, 21658), (980, 20553), (1020, 19747), (1054, 19110), (1085, 18564), (1092, 18445), (1105, 18228), (1190, 16926), (1209, 16660), (1274, 15810), (1302, 15470), (1326, 15190), (1365, 14756), (1428, 14105), (1470, 13702), (1519, 13260), (1547, 13020), (1581, 12740), (1612, 12495), (1666, 12090), (1785, 11284), (1820, 11067), (1860, 10829), (1911, 10540), (2015, 9996), (2108, 9555), (2170, 9282), (2210, 9114), (2380, 8463), (2418, 8330), (2499, 8060), (2548, 7905), (2604, 7735), (2635, 7644), (2652, 7595), (2730, 7378), (2821, 7140), (2940, 6851), (3038, 6630), (3094, 6510), (3162, 6370), (3185, 6324), (3255, 6188), (3315, 6076), (3332, 6045), (3570, 5642), (3689, 5460), (3822, 5270), (4030, 4998), (4165, 4836), (4340, 4641), (4420, 4557)]