12981980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59009}}^1$

素因数の和:59029

約数の個数: 24

約数和(自身を含む): 29741040

約数和(自身を除く): 16759060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 59009, 118018, 236036, 295045, 590090, 649099, 1180180, 1298198, 2596396, 3245495, 6490990, 12981980]

約数ペア:

[(1, 12981980), (2, 6490990), (4, 3245495), (5, 2596396), (10, 1298198), (11, 1180180), (20, 649099), (22, 590090), (44, 295045), (55, 236036), (110, 118018), (220, 59009)]