90621560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1877}}^1$

素因数の和:1976

約数の個数: 64

約数和(自身を含む): 219049920

約数和(自身を除く): 128428360

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, 1877, 2414, 2840, 3754, 4828, 6035, 7508, 9385, 9656, 12070, 15016, 18770, 24140, 31909, 37540, 48280, 63818, 75080, 127636, 133267, 159545, 255272, 266534, 319090, 533068, 638180, 666335, 1066136, 1276360, 1332670, 2265539, 2665340, 4531078, 5330680, 9062156, 11327695, 18124312, 22655390, 45310780, 90621560]

約数ペア:

[(1, 90621560), (2, 45310780), (4, 22655390), (5, 18124312), (8, 11327695), (10, 9062156), (17, 5330680), (20, 4531078), (34, 2665340), (40, 2265539), (68, 1332670), (71, 1276360), (85, 1066136), (136, 666335), (142, 638180), (170, 533068), (284, 319090), (340, 266534), (355, 255272), (568, 159545), (680, 133267), (710, 127636), (1207, 75080), (1420, 63818), (1877, 48280), (2414, 37540), (2840, 31909), (3754, 24140), (4828, 18770), (6035, 15016), (7508, 12070), (9385, 9656)]