89142280

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{4001}}^1$

素因数の和:4569

約数の個数: 32

約数和(自身を含む): 200980440

約数和(自身を除く): 111838160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 4001, 4456, 5570, 8002, 11140, 16004, 20005, 22280, 32008, 40010, 80020, 160040, 2228557, 4457114, 8914228, 11142785, 17828456, 22285570, 44571140, 89142280]

約数ペア:

[(1, 89142280), (2, 44571140), (4, 22285570), (5, 17828456), (8, 11142785), (10, 8914228), (20, 4457114), (40, 2228557), (557, 160040), (1114, 80020), (2228, 40010), (2785, 32008), (4001, 22280), (4456, 20005), (5570, 16004), (8002, 11140)]