68589980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{110629}}^1$

素因数の和:110669

約数の個数: 24

約数和(自身を含む): 148686720

約数和(自身を除く): 80096740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 110629, 221258, 442516, 553145, 1106290, 2212580, 3429499, 6858998, 13717996, 17147495, 34294990, 68589980]

約数ペア:

[(1, 68589980), (2, 34294990), (4, 17147495), (5, 13717996), (10, 6858998), (20, 3429499), (31, 2212580), (62, 1106290), (124, 553145), (155, 442516), (310, 221258), (620, 110629)]