28740580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130639}}^1$

素因数の和:130659

約数の個数: 24

約数和(自身を含む): 65842560

約数和(自身を除く): 37101980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 130639, 261278, 522556, 653195, 1306390, 1437029, 2612780, 2874058, 5748116, 7185145, 14370290, 28740580]

約数ペア:

[(1, 28740580), (2, 14370290), (4, 7185145), (5, 5748116), (10, 2874058), (11, 2612780), (20, 1437029), (22, 1306390), (44, 653195), (55, 522556), (110, 261278), (220, 130639)]