31347960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{557}}^1$

素因数の和:645

約数の個数: 128

約数和(自身を含む): 109278720

約数和(自身を除く): 77930760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 67, 70, 84, 105, 120, 134, 140, 168, 201, 210, 268, 280, 335, 402, 420, 469, 536, 557, 670, 804, 840, 938, 1005, 1114, 1340, 1407, 1608, 1671, 1876, 2010, 2228, 2345, 2680, 2785, 2814, 3342, 3752, 3899, 4020, 4456, 4690, 5570, 5628, 6684, 7035, 7798, 8040, 8355, 9380, 11140, 11256, 11697, 13368, 14070, 15596, 16710, 18760, 19495, 22280, 23394, 28140, 31192, 33420, 37319, 38990, 46788, 56280, 58485, 66840, 74638, 77980, 93576, 111957, 116970, 149276, 155960, 186595, 223914, 233940, 261233, 298552, 373190, 447828, 467880, 522466, 559785, 746380, 783699, 895656, 1044932, 1119570, 1306165, 1492760, 1567398, 2089864, 2239140, 2612330, 3134796, 3918495, 4478280, 5224660, 6269592, 7836990, 10449320, 15673980, 31347960]

約数ペア:

[(1, 31347960), (2, 15673980), (3, 10449320), (4, 7836990), (5, 6269592), (6, 5224660), (7, 4478280), (8, 3918495), (10, 3134796), (12, 2612330), (14, 2239140), (15, 2089864), (20, 1567398), (21, 1492760), (24, 1306165), (28, 1119570), (30, 1044932), (35, 895656), (40, 783699), (42, 746380), (56, 559785), (60, 522466), (67, 467880), (70, 447828), (84, 373190), (105, 298552), (120, 261233), (134, 233940), (140, 223914), (168, 186595), (201, 155960), (210, 149276), (268, 116970), (280, 111957), (335, 93576), (402, 77980), (420, 74638), (469, 66840), (536, 58485), (557, 56280), (670, 46788), (804, 38990), (840, 37319), (938, 33420), (1005, 31192), (1114, 28140), (1340, 23394), (1407, 22280), (1608, 19495), (1671, 18760), (1876, 16710), (2010, 15596), (2228, 14070), (2345, 13368), (2680, 11697), (2785, 11256), (2814, 11140), (3342, 9380), (3752, 8355), (3899, 8040), (4020, 7798), (4456, 7035), (4690, 6684), (5570, 5628)]