20528028040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39476977}}^1$

素因数の和:39477001

約数の個数: 32

約数和(自身を含む): 49740992280

約数和(自身を除く): 29212964240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39476977, 78953954, 157907908, 197384885, 315815816, 394769770, 513200701, 789539540, 1026401402, 1579079080, 2052802804, 2566003505, 4105605608, 5132007010, 10264014020, 20528028040]

約数ペア:

[(1, 20528028040), (2, 10264014020), (4, 5132007010), (5, 4105605608), (8, 2566003505), (10, 2052802804), (13, 1579079080), (20, 1026401402), (26, 789539540), (40, 513200701), (52, 394769770), (65, 315815816), (104, 197384885), (130, 157907908), (260, 78953954), (520, 39476977)]