12681560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 29890080

約数和(自身を除く): 17208520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 73, 86, 101, 146, 172, 202, 215, 292, 344, 365, 404, 430, 505, 584, 730, 808, 860, 1010, 1460, 1720, 2020, 2920, 3139, 4040, 4343, 6278, 7373, 8686, 12556, 14746, 15695, 17372, 21715, 25112, 29492, 31390, 34744, 36865, 43430, 58984, 62780, 73730, 86860, 125560, 147460, 173720, 294920, 317039, 634078, 1268156, 1585195, 2536312, 3170390, 6340780, 12681560]

約数ペア:

[(1, 12681560), (2, 6340780), (4, 3170390), (5, 2536312), (8, 1585195), (10, 1268156), (20, 634078), (40, 317039), (43, 294920), (73, 173720), (86, 147460), (101, 125560), (146, 86860), (172, 73730), (202, 62780), (215, 58984), (292, 43430), (344, 36865), (365, 34744), (404, 31390), (430, 29492), (505, 25112), (584, 21715), (730, 17372), (808, 15695), (860, 14746), (1010, 12556), (1460, 8686), (1720, 7373), (2020, 6278), (2920, 4343), (3139, 4040)]