12201895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 16473600

約数和(自身を除く): 4271705

約数列:

[1, 5, 19, 29, 43, 95, 103, 145, 215, 515, 551, 817, 1247, 1957, 2755, 2987, 4085, 4429, 6235, 9785, 14935, 22145, 23693, 56753, 84151, 118465, 128441, 283765, 420755, 642205, 2440379, 12201895]

約数ペア:

[(1, 12201895), (5, 2440379), (19, 642205), (29, 420755), (43, 283765), (95, 128441), (103, 118465), (145, 84151), (215, 56753), (515, 23693), (551, 22145), (817, 14935), (1247, 9785), (1957, 6235), (2755, 4429), (2987, 4085)]