18718870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{739}}^1$

素因数の和:912

約数の個数: 32

約数和(自身を含む): 35964000

約数和(自身を除く): 17245130

約数列:

[1, 2, 5, 10, 17, 34, 85, 149, 170, 298, 739, 745, 1478, 1490, 2533, 3695, 5066, 7390, 12563, 12665, 25126, 25330, 62815, 110111, 125630, 220222, 550555, 1101110, 1871887, 3743774, 9359435, 18718870]

約数ペア:

[(1, 18718870), (2, 9359435), (5, 3743774), (10, 1871887), (17, 1101110), (34, 550555), (85, 220222), (149, 125630), (170, 110111), (298, 62815), (739, 25330), (745, 25126), (1478, 12665), (1490, 12563), (2533, 7390), (3695, 5066)]