262720

素因数分解:

$2^6\times 5^1\times {\mathrm{821}}^1$

素因数の和:838

約数の個数: 28

約数和(自身を含む): 626364

約数和(自身を除く): 363644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 821, 1642, 3284, 4105, 6568, 8210, 13136, 16420, 26272, 32840, 52544, 65680, 131360, 262720]

約数ペア:

[(1, 262720), (2, 131360), (4, 65680), (5, 52544), (8, 32840), (10, 26272), (16, 16420), (20, 13136), (32, 8210), (40, 6568), (64, 4105), (80, 3284), (160, 1642), (320, 821)]