256409710

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{253871}}^1$

素因数の和:253979

約数の個数: 16

約数和(自身を含む): 466108992

約数和(自身を除く): 209699282

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 253871, 507742, 1269355, 2538710, 25640971, 51281942, 128204855, 256409710]

約数ペア:

[(1, 256409710), (2, 128204855), (5, 51281942), (10, 25640971), (101, 2538710), (202, 1269355), (505, 507742), (1010, 253871)]