28447420

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{17137}}^1$

素因数の和:17229

約数の個数: 24

約数和(自身を含む): 60462864

約数和(自身を除く): 32015444

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 17137, 34274, 68548, 85685, 171370, 342740, 1422371, 2844742, 5689484, 7111855, 14223710, 28447420]

約数ペア:

[(1, 28447420), (2, 14223710), (4, 7111855), (5, 5689484), (10, 2844742), (20, 1422371), (83, 342740), (166, 171370), (332, 85685), (415, 68548), (830, 34274), (1660, 17137)]