220320440

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{30431}}^1$

素因数の和:30623

約数の個数: 32

約数和(自身を含む): 498476160

約数和(自身を除く): 278155720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 30431, 60862, 121724, 152155, 243448, 304310, 608620, 1217240, 5508011, 11016022, 22032044, 27540055, 44064088, 55080110, 110160220, 220320440]

約数ペア:

[(1, 220320440), (2, 110160220), (4, 55080110), (5, 44064088), (8, 27540055), (10, 22032044), (20, 11016022), (40, 5508011), (181, 1217240), (362, 608620), (724, 304310), (905, 243448), (1448, 152155), (1810, 121724), (3620, 60862), (7240, 30431)]