19927940

素因数分解:

$2^2\times 5^1\times {\mathrm{773}}^1\times {\mathrm{1289}}^1$

素因数の和:2071

約数の個数: 24

約数和(自身を含む): 41935320

約数和(自身を除く): 22007380

約数列:

[1, 2, 4, 5, 10, 20, 773, 1289, 1546, 2578, 3092, 3865, 5156, 6445, 7730, 12890, 15460, 25780, 996397, 1992794, 3985588, 4981985, 9963970, 19927940]

約数ペア:

[(1, 19927940), (2, 9963970), (4, 4981985), (5, 3985588), (10, 1992794), (20, 996397), (773, 25780), (1289, 15460), (1546, 12890), (2578, 7730), (3092, 6445), (3865, 5156)]