256098320

素因数分解:

$2^4\times 5^1\times {\mathrm{3201229}}^1$

素因数の和:3201242

約数の個数: 20

約数和(自身を含む): 595428780

約数和(自身を除く): 339330460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3201229, 6402458, 12804916, 16006145, 25609832, 32012290, 51219664, 64024580, 128049160, 256098320]

約数ペア:

[(1, 256098320), (2, 128049160), (4, 64024580), (5, 51219664), (8, 32012290), (10, 25609832), (16, 16006145), (20, 12804916), (40, 6402458), (80, 3201229)]