82560040

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{3271}}^1$

素因数の和:3913

約数の個数: 32

約数和(自身を含む): 186111360

約数和(自身を除く): 103551320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 3155, 3271, 5048, 6310, 6542, 12620, 13084, 16355, 25240, 26168, 32710, 65420, 130840, 2064001, 4128002, 8256004, 10320005, 16512008, 20640010, 41280020, 82560040]

約数ペア:

[(1, 82560040), (2, 41280020), (4, 20640010), (5, 16512008), (8, 10320005), (10, 8256004), (20, 4128002), (40, 2064001), (631, 130840), (1262, 65420), (2524, 32710), (3155, 26168), (3271, 25240), (5048, 16355), (6310, 13084), (6542, 12620)]