64629980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{111431}}^1$

素因数の和:111469

約数の個数: 24

約数和(自身を含む): 140404320

約数和(自身を除く): 75774340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 111431, 222862, 445724, 557155, 1114310, 2228620, 3231499, 6462998, 12925996, 16157495, 32314990, 64629980]

約数ペア:

[(1, 64629980), (2, 32314990), (4, 16157495), (5, 12925996), (10, 6462998), (20, 3231499), (29, 2228620), (58, 1114310), (116, 557155), (145, 445724), (290, 222862), (580, 111431)]