31205480

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{317}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 74183040

約数和(自身を除く): 42977560

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 107, 115, 184, 214, 230, 317, 428, 460, 535, 634, 856, 920, 1070, 1268, 1585, 2140, 2461, 2536, 3170, 4280, 4922, 6340, 7291, 9844, 12305, 12680, 14582, 19688, 24610, 29164, 33919, 36455, 49220, 58328, 67838, 72910, 98440, 135676, 145820, 169595, 271352, 291640, 339190, 678380, 780137, 1356760, 1560274, 3120548, 3900685, 6241096, 7801370, 15602740, 31205480]

約数ペア:

[(1, 31205480), (2, 15602740), (4, 7801370), (5, 6241096), (8, 3900685), (10, 3120548), (20, 1560274), (23, 1356760), (40, 780137), (46, 678380), (92, 339190), (107, 291640), (115, 271352), (184, 169595), (214, 145820), (230, 135676), (317, 98440), (428, 72910), (460, 67838), (535, 58328), (634, 49220), (856, 36455), (920, 33919), (1070, 29164), (1268, 24610), (1585, 19688), (2140, 14582), (2461, 12680), (2536, 12305), (3170, 9844), (4280, 7291), (4922, 6340)]