31910950

素因数分解:

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

素因数の和:273

約数の個数: 48

約数和(自身を含む): 61469280

約数和(自身を除く): 29558330

約数列:

[1, 2, 5, 10, 25, 50, 71, 89, 101, 142, 178, 202, 355, 445, 505, 710, 890, 1010, 1775, 2225, 2525, 3550, 4450, 5050, 6319, 7171, 8989, 12638, 14342, 17978, 31595, 35855, 44945, 63190, 71710, 89890, 157975, 179275, 224725, 315950, 358550, 449450, 638219, 1276438, 3191095, 6382190, 15955475, 31910950]

約数ペア:

[(1, 31910950), (2, 15955475), (5, 6382190), (10, 3191095), (25, 1276438), (50, 638219), (71, 449450), (89, 358550), (101, 315950), (142, 224725), (178, 179275), (202, 157975), (355, 89890), (445, 71710), (505, 63190), (710, 44945), (890, 35855), (1010, 31595), (1775, 17978), (2225, 14342), (2525, 12638), (3550, 8989), (4450, 7171), (5050, 6319)]