19557740

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6563}}^1$

素因数の和:6721

約数の個数: 24

約数和(自身を含む): 41353200

約数和(自身を除く): 21795460

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6563, 13126, 26252, 32815, 65630, 131260, 977887, 1955774, 3911548, 4889435, 9778870, 19557740]

約数ペア:

[(1, 19557740), (2, 9778870), (4, 4889435), (5, 3911548), (10, 1955774), (20, 977887), (149, 131260), (298, 65630), (596, 32815), (745, 26252), (1490, 13126), (2980, 6563)]