12407980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3671}}^1$

素因数の和:3706

約数の個数: 36

約数和(自身を含む): 28222992

約数和(自身を除く): 15815012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 3671, 7342, 14684, 18355, 36710, 47723, 73420, 95446, 190892, 238615, 477230, 620399, 954460, 1240798, 2481596, 3101995, 6203990, 12407980]

約数ペア:

[(1, 12407980), (2, 6203990), (4, 3101995), (5, 2481596), (10, 1240798), (13, 954460), (20, 620399), (26, 477230), (52, 238615), (65, 190892), (130, 95446), (169, 73420), (260, 47723), (338, 36710), (676, 18355), (845, 14684), (1690, 7342), (3380, 3671)]