19448980

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1571}}^1$

素因数の和:2199

約数の個数: 24

約数和(自身を含む): 40934880

約数和(自身を除く): 21485900

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 1571, 2476, 3095, 3142, 6190, 6284, 7855, 12380, 15710, 31420, 972449, 1944898, 3889796, 4862245, 9724490, 19448980]

約数ペア:

[(1, 19448980), (2, 9724490), (4, 4862245), (5, 3889796), (10, 1944898), (20, 972449), (619, 31420), (1238, 15710), (1571, 12380), (2476, 7855), (3095, 6284), (3142, 6190)]