11981980

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{3463}}^1$

素因数の和:3645

約数の個数: 24

約数和(自身を含む): 25314912

約数和(自身を除く): 13332932

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 3463, 6926, 13852, 17315, 34630, 69260, 599099, 1198198, 2396396, 2995495, 5990990, 11981980]

約数ペア:

[(1, 11981980), (2, 5990990), (4, 2995495), (5, 2396396), (10, 1198198), (20, 599099), (173, 69260), (346, 34630), (692, 17315), (865, 13852), (1730, 6926), (3460, 3463)]