65144020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{105071}}^1$

素因数の和:105111

約数の個数: 24

約数和(自身を含む): 141216768

約数和(自身を除く): 76072748

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 105071, 210142, 420284, 525355, 1050710, 2101420, 3257201, 6514402, 13028804, 16286005, 32572010, 65144020]

約数ペア:

[(1, 65144020), (2, 32572010), (4, 16286005), (5, 13028804), (10, 6514402), (20, 3257201), (31, 2101420), (62, 1050710), (124, 525355), (155, 420284), (310, 210142), (620, 105071)]