128366860

素因数分解:

$2^2\times 5^1\times {\mathrm{1597}}^1\times {\mathrm{4019}}^1$

素因数の和:5625

約数の個数: 24

約数和(自身を含む): 269806320

約数和(自身を除く): 141439460

約数列:

[1, 2, 4, 5, 10, 20, 1597, 3194, 4019, 6388, 7985, 8038, 15970, 16076, 20095, 31940, 40190, 80380, 6418343, 12836686, 25673372, 32091715, 64183430, 128366860]

約数ペア:

[(1, 128366860), (2, 64183430), (4, 32091715), (5, 25673372), (10, 12836686), (20, 6418343), (1597, 80380), (3194, 40190), (4019, 31940), (6388, 20095), (7985, 16076), (8038, 15970)]