31367480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{277}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 75060000

約数和(自身を除く): 43692520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 149, 152, 190, 277, 298, 380, 554, 596, 745, 760, 1108, 1192, 1385, 1490, 2216, 2770, 2831, 2980, 5263, 5540, 5662, 5960, 10526, 11080, 11324, 14155, 21052, 22648, 26315, 28310, 41273, 42104, 52630, 56620, 82546, 105260, 113240, 165092, 206365, 210520, 330184, 412730, 784187, 825460, 1568374, 1650920, 3136748, 3920935, 6273496, 7841870, 15683740, 31367480]

約数ペア:

[(1, 31367480), (2, 15683740), (4, 7841870), (5, 6273496), (8, 3920935), (10, 3136748), (19, 1650920), (20, 1568374), (38, 825460), (40, 784187), (76, 412730), (95, 330184), (149, 210520), (152, 206365), (190, 165092), (277, 113240), (298, 105260), (380, 82546), (554, 56620), (596, 52630), (745, 42104), (760, 41273), (1108, 28310), (1192, 26315), (1385, 22648), (1490, 21052), (2216, 14155), (2770, 11324), (2831, 11080), (2980, 10526), (5263, 5960), (5540, 5662)]