87941680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64663}}^1$

素因数の和:64693

約数の個数: 40

約数和(自身を含む): 216495072

約数和(自身を除く): 128553392

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 64663, 129326, 258652, 323315, 517304, 646630, 1034608, 1099271, 1293260, 2198542, 2586520, 4397084, 5173040, 5496355, 8794168, 10992710, 17588336, 21985420, 43970840, 87941680]

約数ペア:

[(1, 87941680), (2, 43970840), (4, 21985420), (5, 17588336), (8, 10992710), (10, 8794168), (16, 5496355), (17, 5173040), (20, 4397084), (34, 2586520), (40, 2198542), (68, 1293260), (80, 1099271), (85, 1034608), (136, 646630), (170, 517304), (272, 323315), (340, 258652), (680, 129326), (1360, 64663)]