129079240

素因数分解:

$2^3\times 5^1\times {\mathrm{3226981}}^1$

素因数の和:3226992

約数の個数: 16

約数和(自身を含む): 290428380

約数和(自身を除く): 161349140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3226981, 6453962, 12907924, 16134905, 25815848, 32269810, 64539620, 129079240]

約数ペア:

[(1, 129079240), (2, 64539620), (4, 32269810), (5, 25815848), (8, 16134905), (10, 12907924), (20, 6453962), (40, 3226981)]