12957100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9967}}^1$

素因数の和:9994

約数の個数: 36

約数和(自身を含む): 30282784

約数和(自身を除く): 17325684

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 9967, 19934, 39868, 49835, 99670, 129571, 199340, 249175, 259142, 498350, 518284, 647855, 996700, 1295710, 2591420, 3239275, 6478550, 12957100]

約数ペア:

[(1, 12957100), (2, 6478550), (4, 3239275), (5, 2591420), (10, 1295710), (13, 996700), (20, 647855), (25, 518284), (26, 498350), (50, 259142), (52, 249175), (65, 199340), (100, 129571), (130, 99670), (260, 49835), (325, 39868), (650, 19934), (1300, 9967)]