81890724

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 195773760

約数和(自身を除く): 113883036

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 331, 389, 636, 662, 778, 993, 1167, 1324, 1556, 1986, 2334, 3972, 4668, 17543, 20617, 35086, 41234, 52629, 61851, 70172, 82468, 105258, 123702, 128759, 210516, 247404, 257518, 386277, 515036, 772554, 1545108, 6824227, 13648454, 20472681, 27296908, 40945362, 81890724]

約数ペア:

[(1, 81890724), (2, 40945362), (3, 27296908), (4, 20472681), (6, 13648454), (12, 6824227), (53, 1545108), (106, 772554), (159, 515036), (212, 386277), (318, 257518), (331, 247404), (389, 210516), (636, 128759), (662, 123702), (778, 105258), (993, 82468), (1167, 70172), (1324, 61851), (1556, 52629), (1986, 41234), (2334, 35086), (3972, 20617), (4668, 17543)]