17942980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81559}}^1$

素因数の和:81579

約数の個数: 24

約数和(自身を含む): 41106240

約数和(自身を除く): 23163260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 81559, 163118, 326236, 407795, 815590, 897149, 1631180, 1794298, 3588596, 4485745, 8971490, 17942980]

約数ペア:

[(1, 17942980), (2, 8971490), (4, 4485745), (5, 3588596), (10, 1794298), (11, 1631180), (20, 897149), (22, 815590), (44, 407795), (55, 326236), (110, 163118), (220, 81559)]