20385612

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1013}}^1$

素因数の和:1079

約数の個数: 72

約数和(自身を含む): 56840784

約数和(自身を除く): 36455172

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 43, 52, 78, 86, 117, 129, 156, 172, 234, 258, 387, 468, 516, 559, 774, 1013, 1118, 1548, 1677, 2026, 2236, 3039, 3354, 4052, 5031, 6078, 6708, 9117, 10062, 12156, 13169, 18234, 20124, 26338, 36468, 39507, 43559, 52676, 79014, 87118, 118521, 130677, 158028, 174236, 237042, 261354, 392031, 474084, 522708, 566267, 784062, 1132534, 1568124, 1698801, 2265068, 3397602, 5096403, 6795204, 10192806, 20385612]

約数ペア:

[(1, 20385612), (2, 10192806), (3, 6795204), (4, 5096403), (6, 3397602), (9, 2265068), (12, 1698801), (13, 1568124), (18, 1132534), (26, 784062), (36, 566267), (39, 522708), (43, 474084), (52, 392031), (78, 261354), (86, 237042), (117, 174236), (129, 158028), (156, 130677), (172, 118521), (234, 87118), (258, 79014), (387, 52676), (468, 43559), (516, 39507), (559, 36468), (774, 26338), (1013, 20124), (1118, 18234), (1548, 13169), (1677, 12156), (2026, 10062), (2236, 9117), (3039, 6708), (3354, 6078), (4052, 5031)]