220580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:319

約数の個数: 24

約数和(自身を含む): 476280

約数和(自身を除く): 255700

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 269, 410, 538, 820, 1076, 1345, 2690, 5380, 11029, 22058, 44116, 55145, 110290, 220580]

約数ペア:

[(1, 220580), (2, 110290), (4, 55145), (5, 44116), (10, 22058), (20, 11029), (41, 5380), (82, 2690), (164, 1345), (205, 1076), (269, 820), (410, 538)]