5458280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2237}}^1$

素因数の和:2309

約数の個数: 32

約数和(自身を含む): 12488040

約数和(自身を除く): 7029760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2237, 2440, 4474, 8948, 11185, 17896, 22370, 44740, 89480, 136457, 272914, 545828, 682285, 1091656, 1364570, 2729140, 5458280]

約数ペア:

[(1, 5458280), (2, 2729140), (4, 1364570), (5, 1091656), (8, 682285), (10, 545828), (20, 272914), (40, 136457), (61, 89480), (122, 44740), (244, 22370), (305, 17896), (488, 11185), (610, 8948), (1220, 4474), (2237, 2440)]