18146920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41243}}^1$

素因数の和:41265

約数の個数: 32

約数和(自身を含む): 44543520

約数和(自身を除く): 26396600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 41243, 82486, 164972, 206215, 329944, 412430, 453673, 824860, 907346, 1649720, 1814692, 2268365, 3629384, 4536730, 9073460, 18146920]

約数ペア:

[(1, 18146920), (2, 9073460), (4, 4536730), (5, 3629384), (8, 2268365), (10, 1814692), (11, 1649720), (20, 907346), (22, 824860), (40, 453673), (44, 412430), (55, 329944), (88, 206215), (110, 164972), (220, 82486), (440, 41243)]