12785320

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3851}}^1$

素因数の和:3945

約数の個数: 32

約数和(自身を含む): 29121120

約数和(自身を除く): 16335800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 3851, 7702, 15404, 19255, 30808, 38510, 77020, 154040, 319633, 639266, 1278532, 1598165, 2557064, 3196330, 6392660, 12785320]

約数ペア:

[(1, 12785320), (2, 6392660), (4, 3196330), (5, 2557064), (8, 1598165), (10, 1278532), (20, 639266), (40, 319633), (83, 154040), (166, 77020), (332, 38510), (415, 30808), (664, 19255), (830, 15404), (1660, 7702), (3320, 3851)]