20112980

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{5813}}^1$

素因数の和:5995

約数の個数: 24

約数和(自身を含む): 42488712

約数和(自身を除く): 22375732

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 5813, 11626, 23252, 29065, 58130, 116260, 1005649, 2011298, 4022596, 5028245, 10056490, 20112980]

約数ペア:

[(1, 20112980), (2, 10056490), (4, 5028245), (5, 4022596), (10, 2011298), (20, 1005649), (173, 116260), (346, 58130), (692, 29065), (865, 23252), (1730, 11626), (3460, 5813)]