28773380

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{18211}}^1$

素因数の和:18299

約数の個数: 24

約数和(自身を含む): 61192320

約数和(自身を除く): 32418940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 18211, 36422, 72844, 91055, 182110, 364220, 1438669, 2877338, 5754676, 7193345, 14386690, 28773380]

約数ペア:

[(1, 28773380), (2, 14386690), (4, 7193345), (5, 5754676), (10, 2877338), (20, 1438669), (79, 364220), (158, 182110), (316, 91055), (395, 72844), (790, 36422), (1580, 18211)]