12880908

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 34162128

約数和(自身を除く): 21281220

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 53, 86, 106, 129, 157, 159, 172, 212, 258, 314, 318, 387, 471, 477, 516, 628, 636, 774, 942, 954, 1413, 1548, 1884, 1908, 2279, 2826, 4558, 5652, 6751, 6837, 8321, 9116, 13502, 13674, 16642, 20253, 20511, 24963, 27004, 27348, 33284, 40506, 41022, 49926, 60759, 74889, 81012, 82044, 99852, 121518, 149778, 243036, 299556, 357803, 715606, 1073409, 1431212, 2146818, 3220227, 4293636, 6440454, 12880908]

約数ペア:

[(1, 12880908), (2, 6440454), (3, 4293636), (4, 3220227), (6, 2146818), (9, 1431212), (12, 1073409), (18, 715606), (36, 357803), (43, 299556), (53, 243036), (86, 149778), (106, 121518), (129, 99852), (157, 82044), (159, 81012), (172, 74889), (212, 60759), (258, 49926), (314, 41022), (318, 40506), (387, 33284), (471, 27348), (477, 27004), (516, 24963), (628, 20511), (636, 20253), (774, 16642), (942, 13674), (954, 13502), (1413, 9116), (1548, 8321), (1884, 6837), (1908, 6751), (2279, 5652), (2826, 4558)]