19238840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11731}}^1$

素因数の和:11783

約数の個数: 32

約数和(自身を含む): 44346960

約数和(自身を除く): 25108120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11731, 23462, 46924, 58655, 93848, 117310, 234620, 469240, 480971, 961942, 1923884, 2404855, 3847768, 4809710, 9619420, 19238840]

約数ペア:

[(1, 19238840), (2, 9619420), (4, 4809710), (5, 3847768), (8, 2404855), (10, 1923884), (20, 961942), (40, 480971), (41, 469240), (82, 234620), (164, 117310), (205, 93848), (328, 58655), (410, 46924), (820, 23462), (1640, 11731)]