2215880

素因数分解:

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

素因数の和:1829

約数の個数: 32

約数和(自身を含む): 5149440

約数和(自身を除く): 2933560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1787, 3574, 7148, 8935, 14296, 17870, 35740, 55397, 71480, 110794, 221588, 276985, 443176, 553970, 1107940, 2215880]

約数ペア:

[(1, 2215880), (2, 1107940), (4, 553970), (5, 443176), (8, 276985), (10, 221588), (20, 110794), (31, 71480), (40, 55397), (62, 35740), (124, 17870), (155, 14296), (248, 8935), (310, 7148), (620, 3574), (1240, 1787)]