257064250

素因数分解:

$2^1\times 5^3\times {\mathrm{257}}^1\times {\mathrm{4001}}^1$

素因数の和:4275

約数の個数: 32

約数和(自身を含む): 483217488

約数和(自身を除く): 226153238

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 257, 514, 1285, 2570, 4001, 6425, 8002, 12850, 20005, 32125, 40010, 64250, 100025, 200050, 500125, 1000250, 1028257, 2056514, 5141285, 10282570, 25706425, 51412850, 128532125, 257064250]

約数ペア:

[(1, 257064250), (2, 128532125), (5, 51412850), (10, 25706425), (25, 10282570), (50, 5141285), (125, 2056514), (250, 1028257), (257, 1000250), (514, 500125), (1285, 200050), (2570, 100025), (4001, 64250), (6425, 40010), (8002, 32125), (12850, 20005)]