12499960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28409}}^1$

素因数の和:28431

約数の個数: 32

約数和(自身を含む): 30682800

約数和(自身を除く): 18182840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 28409, 56818, 113636, 142045, 227272, 284090, 312499, 568180, 624998, 1136360, 1249996, 1562495, 2499992, 3124990, 6249980, 12499960]

約数ペア:

[(1, 12499960), (2, 6249980), (4, 3124990), (5, 2499992), (8, 1562495), (10, 1249996), (11, 1136360), (20, 624998), (22, 568180), (40, 312499), (44, 284090), (55, 227272), (88, 142045), (110, 113636), (220, 56818), (440, 28409)]