28921390

素因数分解:

$2^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{12101}}^1$

素因数の和:12347

約数の個数: 16

約数和(自身を含む): 52280640

約数和(自身を除く): 23359250

約数列:

[1, 2, 5, 10, 239, 478, 1195, 2390, 12101, 24202, 60505, 121010, 2892139, 5784278, 14460695, 28921390]

約数ペア:

[(1, 28921390), (2, 14460695), (5, 5784278), (10, 2892139), (239, 121010), (478, 60505), (1195, 24202), (2390, 12101)]