19529680

素因数分解:

$2^4\times 5^1\times {\mathrm{244121}}^1$

素因数の和:244134

約数の個数: 20

約数和(自身を含む): 45406692

約数和(自身を除く): 25877012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244121, 488242, 976484, 1220605, 1952968, 2441210, 3905936, 4882420, 9764840, 19529680]

約数ペア:

[(1, 19529680), (2, 9764840), (4, 4882420), (5, 3905936), (8, 2441210), (10, 1952968), (16, 1220605), (20, 976484), (40, 488242), (80, 244121)]