12764380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 27760320

約数和(自身を除く): 14995940

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 101, 142, 178, 202, 284, 355, 356, 404, 445, 505, 710, 890, 1010, 1420, 1780, 2020, 6319, 7171, 8989, 12638, 14342, 17978, 25276, 28684, 31595, 35855, 35956, 44945, 63190, 71710, 89890, 126380, 143420, 179780, 638219, 1276438, 2552876, 3191095, 6382190, 12764380]

約数ペア:

[(1, 12764380), (2, 6382190), (4, 3191095), (5, 2552876), (10, 1276438), (20, 638219), (71, 179780), (89, 143420), (101, 126380), (142, 89890), (178, 71710), (202, 63190), (284, 44945), (355, 35956), (356, 35855), (404, 31595), (445, 28684), (505, 25276), (710, 17978), (890, 14342), (1010, 12638), (1420, 8989), (1780, 7171), (2020, 6319)]