31405920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1$

素因数の和:757

約数の個数: 192

約数和(自身を含む): 121927680

約数和(自身を除く): 90521760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 195, 208, 210, 224, 240, 260, 273, 280, 312, 336, 364, 390, 416, 420, 455, 480, 520, 546, 560, 624, 672, 719, 728, 780, 840, 910, 1040, 1092, 1120, 1248, 1365, 1438, 1456, 1560, 1680, 1820, 2080, 2157, 2184, 2730, 2876, 2912, 3120, 3360, 3595, 3640, 4314, 4368, 5033, 5460, 5752, 6240, 7190, 7280, 8628, 8736, 9347, 10066, 10785, 10920, 11504, 14380, 14560, 15099, 17256, 18694, 20132, 21570, 21840, 23008, 25165, 28041, 28760, 30198, 34512, 37388, 40264, 43140, 43680, 46735, 50330, 56082, 57520, 60396, 65429, 69024, 74776, 75495, 80528, 86280, 93470, 100660, 112164, 115040, 120792, 130858, 140205, 149552, 150990, 161056, 172560, 186940, 196287, 201320, 224328, 241584, 261716, 280410, 299104, 301980, 327145, 345120, 373880, 392574, 402640, 448656, 483168, 523432, 560820, 603960, 654290, 747760, 785148, 805280, 897312, 981435, 1046864, 1121640, 1207920, 1308580, 1495520, 1570296, 1962870, 2093728, 2243280, 2415840, 2617160, 3140592, 3925740, 4486560, 5234320, 6281184, 7851480, 10468640, 15702960, 31405920]

約数ペア:

[(1, 31405920), (2, 15702960), (3, 10468640), (4, 7851480), (5, 6281184), (6, 5234320), (7, 4486560), (8, 3925740), (10, 3140592), (12, 2617160), (13, 2415840), (14, 2243280), (15, 2093728), (16, 1962870), (20, 1570296), (21, 1495520), (24, 1308580), (26, 1207920), (28, 1121640), (30, 1046864), (32, 981435), (35, 897312), (39, 805280), (40, 785148), (42, 747760), (48, 654290), (52, 603960), (56, 560820), (60, 523432), (65, 483168), (70, 448656), (78, 402640), (80, 392574), (84, 373880), (91, 345120), (96, 327145), (104, 301980), (105, 299104), (112, 280410), (120, 261716), (130, 241584), (140, 224328), (156, 201320), (160, 196287), (168, 186940), (182, 172560), (195, 161056), (208, 150990), (210, 149552), (224, 140205), (240, 130858), (260, 120792), (273, 115040), (280, 112164), (312, 100660), (336, 93470), (364, 86280), (390, 80528), (416, 75495), (420, 74776), (455, 69024), (480, 65429), (520, 60396), (546, 57520), (560, 56082), (624, 50330), (672, 46735), (719, 43680), (728, 43140), (780, 40264), (840, 37388), (910, 34512), (1040, 30198), (1092, 28760), (1120, 28041), (1248, 25165), (1365, 23008), (1438, 21840), (1456, 21570), (1560, 20132), (1680, 18694), (1820, 17256), (2080, 15099), (2157, 14560), (2184, 14380), (2730, 11504), (2876, 10920), (2912, 10785), (3120, 10066), (3360, 9347), (3595, 8736), (3640, 8628), (4314, 7280), (4368, 7190), (5033, 6240), (5460, 5752)]