81252680

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{13633}}^1$

素因数の和:13793

約数の個数: 32

約数和(自身を含む): 184059000

約数和(自身を除く): 102806320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 13633, 27266, 54532, 68165, 109064, 136330, 272660, 545320, 2031317, 4062634, 8125268, 10156585, 16250536, 20313170, 40626340, 81252680]

約数ペア:

[(1, 81252680), (2, 40626340), (4, 20313170), (5, 16250536), (8, 10156585), (10, 8125268), (20, 4062634), (40, 2031317), (149, 545320), (298, 272660), (596, 136330), (745, 109064), (1192, 68165), (1490, 54532), (2980, 27266), (5960, 13633)]