90851080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1787}}^1$

素因数の和:1870

約数の個数: 64

約数和(自身を含む): 216276480

約数和(自身を除く): 125425400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 310, 328, 410, 620, 820, 1240, 1271, 1640, 1787, 2542, 3574, 5084, 6355, 7148, 8935, 10168, 12710, 14296, 17870, 25420, 35740, 50840, 55397, 71480, 73267, 110794, 146534, 221588, 276985, 293068, 366335, 443176, 553970, 586136, 732670, 1107940, 1465340, 2215880, 2271277, 2930680, 4542554, 9085108, 11356385, 18170216, 22712770, 45425540, 90851080]

約数ペア:

[(1, 90851080), (2, 45425540), (4, 22712770), (5, 18170216), (8, 11356385), (10, 9085108), (20, 4542554), (31, 2930680), (40, 2271277), (41, 2215880), (62, 1465340), (82, 1107940), (124, 732670), (155, 586136), (164, 553970), (205, 443176), (248, 366335), (310, 293068), (328, 276985), (410, 221588), (620, 146534), (820, 110794), (1240, 73267), (1271, 71480), (1640, 55397), (1787, 50840), (2542, 35740), (3574, 25420), (5084, 17870), (6355, 14296), (7148, 12710), (8935, 10168)]