145588040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{279977}}^1$

素因数の和:280001

約数の個数: 32

約数和(自身を含む): 352772280

約数和(自身を除く): 207184240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 279977, 559954, 1119908, 1399885, 2239816, 2799770, 3639701, 5599540, 7279402, 11199080, 14558804, 18198505, 29117608, 36397010, 72794020, 145588040]

約数ペア:

[(1, 145588040), (2, 72794020), (4, 36397010), (5, 29117608), (8, 18198505), (10, 14558804), (13, 11199080), (20, 7279402), (26, 5599540), (40, 3639701), (52, 2799770), (65, 2239816), (104, 1399885), (130, 1119908), (260, 559954), (520, 279977)]