7917920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:144

約数の個数: 96

約数和(自身を含む): 20575296

約数和(自身を除く): 12657376

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 41, 68, 71, 80, 82, 85, 136, 142, 160, 164, 170, 205, 272, 284, 328, 340, 355, 410, 544, 568, 656, 680, 697, 710, 820, 1136, 1207, 1312, 1360, 1394, 1420, 1640, 2272, 2414, 2720, 2788, 2840, 2911, 3280, 3485, 4828, 5576, 5680, 5822, 6035, 6560, 6970, 9656, 11152, 11360, 11644, 12070, 13940, 14555, 19312, 22304, 23288, 24140, 27880, 29110, 38624, 46576, 48280, 49487, 55760, 58220, 93152, 96560, 98974, 111520, 116440, 193120, 197948, 232880, 247435, 395896, 465760, 494870, 791792, 989740, 1583584, 1979480, 3958960, 7917920]

約数ペア:

[(1, 7917920), (2, 3958960), (4, 1979480), (5, 1583584), (8, 989740), (10, 791792), (16, 494870), (17, 465760), (20, 395896), (32, 247435), (34, 232880), (40, 197948), (41, 193120), (68, 116440), (71, 111520), (80, 98974), (82, 96560), (85, 93152), (136, 58220), (142, 55760), (160, 49487), (164, 48280), (170, 46576), (205, 38624), (272, 29110), (284, 27880), (328, 24140), (340, 23288), (355, 22304), (410, 19312), (544, 14555), (568, 13940), (656, 12070), (680, 11644), (697, 11360), (710, 11152), (820, 9656), (1136, 6970), (1207, 6560), (1312, 6035), (1360, 5822), (1394, 5680), (1420, 5576), (1640, 4828), (2272, 3485), (2414, 3280), (2720, 2911), (2788, 2840)]