19219740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{320329}}^1$

素因数の和:320341

約数の個数: 24

約数和(自身を含む): 53815440

約数和(自身を除く): 34595700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 320329, 640658, 960987, 1281316, 1601645, 1921974, 3203290, 3843948, 4804935, 6406580, 9609870, 19219740]

約数ペア:

[(1, 19219740), (2, 9609870), (3, 6406580), (4, 4804935), (5, 3843948), (6, 3203290), (10, 1921974), (12, 1601645), (15, 1281316), (20, 960987), (30, 640658), (60, 320329)]