28890740

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{11027}}^1$

素因数の和:11167

約数の個数: 24

約数和(自身を含む): 61139232

約数和(自身を除く): 32248492

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 11027, 22054, 44108, 55135, 110270, 220540, 1444537, 2889074, 5778148, 7222685, 14445370, 28890740]

約数ペア:

[(1, 28890740), (2, 14445370), (4, 7222685), (5, 5778148), (10, 2889074), (20, 1444537), (131, 220540), (262, 110270), (524, 55135), (655, 44108), (1310, 22054), (2620, 11027)]