31531266

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{61}}^1$

素因数の和:176

約数の個数: 72

約数和(自身を含む): 76403964

約数和(自身を除く): 44872698

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 47, 61, 78, 94, 117, 122, 141, 183, 234, 282, 366, 423, 549, 611, 793, 846, 1098, 1222, 1586, 1833, 2209, 2379, 2867, 3666, 4418, 4758, 5499, 5734, 6627, 7137, 8601, 10998, 13254, 14274, 17202, 19881, 25803, 28717, 37271, 39762, 51606, 57434, 74542, 86151, 111813, 134749, 172302, 223626, 258453, 269498, 335439, 404247, 516906, 670878, 808494, 1212741, 1751737, 2425482, 3503474, 5255211, 10510422, 15765633, 31531266]

約数ペア:

[(1, 31531266), (2, 15765633), (3, 10510422), (6, 5255211), (9, 3503474), (13, 2425482), (18, 1751737), (26, 1212741), (39, 808494), (47, 670878), (61, 516906), (78, 404247), (94, 335439), (117, 269498), (122, 258453), (141, 223626), (183, 172302), (234, 134749), (282, 111813), (366, 86151), (423, 74542), (549, 57434), (611, 51606), (793, 39762), (846, 37271), (1098, 28717), (1222, 25803), (1586, 19881), (1833, 17202), (2209, 14274), (2379, 13254), (2867, 10998), (3666, 8601), (4418, 7137), (4758, 6627), (5499, 5734)]