131872760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{106349}}^1$

素因数の和:106391

約数の個数: 32

約数和(自身を含む): 306288000

約数和(自身を除く): 174415240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 106349, 212698, 425396, 531745, 850792, 1063490, 2126980, 3296819, 4253960, 6593638, 13187276, 16484095, 26374552, 32968190, 65936380, 131872760]

約数ペア:

[(1, 131872760), (2, 65936380), (4, 32968190), (5, 26374552), (8, 16484095), (10, 13187276), (20, 6593638), (31, 4253960), (40, 3296819), (62, 2126980), (124, 1063490), (155, 850792), (248, 531745), (310, 425396), (620, 212698), (1240, 106349)]