72785420

素因数分解:

$2^2\times 5^1\times {\mathrm{863}}^1\times {\mathrm{4217}}^1$

素因数の和:5089

約数の個数: 24

約数和(自身を含む): 153062784

約数和(自身を除く): 80277364

約数列:

[1, 2, 4, 5, 10, 20, 863, 1726, 3452, 4217, 4315, 8434, 8630, 16868, 17260, 21085, 42170, 84340, 3639271, 7278542, 14557084, 18196355, 36392710, 72785420]

約数ペア:

[(1, 72785420), (2, 36392710), (4, 18196355), (5, 14557084), (10, 7278542), (20, 3639271), (863, 84340), (1726, 42170), (3452, 21085), (4217, 17260), (4315, 16868), (8434, 8630)]