19435540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13687}}^1$

素因数の和:13767

約数の個数: 24

約数和(自身を含む): 41392512

約数和(自身を除く): 21956972

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13687, 27374, 54748, 68435, 136870, 273740, 971777, 1943554, 3887108, 4858885, 9717770, 19435540]

約数ペア:

[(1, 19435540), (2, 9717770), (4, 4858885), (5, 3887108), (10, 1943554), (20, 971777), (71, 273740), (142, 136870), (284, 68435), (355, 54748), (710, 27374), (1420, 13687)]