8880012

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 23703680

約数和(自身を除く): 14823668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 73, 93, 109, 124, 146, 186, 218, 219, 279, 292, 327, 372, 436, 438, 558, 654, 657, 876, 981, 1116, 1308, 1314, 1962, 2263, 2628, 3379, 3924, 4526, 6758, 6789, 7957, 9052, 10137, 13516, 13578, 15914, 20274, 20367, 23871, 27156, 30411, 31828, 40548, 40734, 47742, 60822, 71613, 81468, 95484, 121644, 143226, 246667, 286452, 493334, 740001, 986668, 1480002, 2220003, 2960004, 4440006, 8880012]

約数ペア:

[(1, 8880012), (2, 4440006), (3, 2960004), (4, 2220003), (6, 1480002), (9, 986668), (12, 740001), (18, 493334), (31, 286452), (36, 246667), (62, 143226), (73, 121644), (93, 95484), (109, 81468), (124, 71613), (146, 60822), (186, 47742), (218, 40734), (219, 40548), (279, 31828), (292, 30411), (327, 27156), (372, 23871), (436, 20367), (438, 20274), (558, 15914), (654, 13578), (657, 13516), (876, 10137), (981, 9052), (1116, 7957), (1308, 6789), (1314, 6758), (1962, 4526), (2263, 3924), (2628, 3379)]