1979480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 4898880

約数和(自身を除く): 2919400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 71, 82, 85, 136, 142, 164, 170, 205, 284, 328, 340, 355, 410, 568, 680, 697, 710, 820, 1207, 1394, 1420, 1640, 2414, 2788, 2840, 2911, 3485, 4828, 5576, 5822, 6035, 6970, 9656, 11644, 12070, 13940, 14555, 23288, 24140, 27880, 29110, 48280, 49487, 58220, 98974, 116440, 197948, 247435, 395896, 494870, 989740, 1979480]

約数ペア:

[(1, 1979480), (2, 989740), (4, 494870), (5, 395896), (8, 247435), (10, 197948), (17, 116440), (20, 98974), (34, 58220), (40, 49487), (41, 48280), (68, 29110), (71, 27880), (82, 24140), (85, 23288), (136, 14555), (142, 13940), (164, 12070), (170, 11644), (205, 9656), (284, 6970), (328, 6035), (340, 5822), (355, 5576), (410, 4828), (568, 3485), (680, 2911), (697, 2840), (710, 2788), (820, 2414), (1207, 1640), (1394, 1420)]