77875640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1613}}^1$

素因数の和:1712

約数の個数: 64

約数和(自身を含む): 188256960

約数和(自身を除く): 110381320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 568, 680, 710, 1207, 1420, 1613, 2414, 2840, 3226, 4828, 6035, 6452, 8065, 9656, 12070, 12904, 16130, 24140, 27421, 32260, 48280, 54842, 64520, 109684, 114523, 137105, 219368, 229046, 274210, 458092, 548420, 572615, 916184, 1096840, 1145230, 1946891, 2290460, 3893782, 4580920, 7787564, 9734455, 15575128, 19468910, 38937820, 77875640]

約数ペア:

[(1, 77875640), (2, 38937820), (4, 19468910), (5, 15575128), (8, 9734455), (10, 7787564), (17, 4580920), (20, 3893782), (34, 2290460), (40, 1946891), (68, 1145230), (71, 1096840), (85, 916184), (136, 572615), (142, 548420), (170, 458092), (284, 274210), (340, 229046), (355, 219368), (568, 137105), (680, 114523), (710, 109684), (1207, 64520), (1420, 54842), (1613, 48280), (2414, 32260), (2840, 27421), (3226, 24140), (4828, 16130), (6035, 12904), (6452, 12070), (8065, 9656)]