20880612

素因数分解:

$2^2\times 3^3\times {\mathrm{397}}^1\times {\mathrm{487}}^1$

素因数の和:897

約数の個数: 48

約数和(自身を含む): 54382720

約数和(自身を除く): 33502108

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 397, 487, 794, 974, 1191, 1461, 1588, 1948, 2382, 2922, 3573, 4383, 4764, 5844, 7146, 8766, 10719, 13149, 14292, 17532, 21438, 26298, 42876, 52596, 193339, 386678, 580017, 773356, 1160034, 1740051, 2320068, 3480102, 5220153, 6960204, 10440306, 20880612]

約数ペア:

[(1, 20880612), (2, 10440306), (3, 6960204), (4, 5220153), (6, 3480102), (9, 2320068), (12, 1740051), (18, 1160034), (27, 773356), (36, 580017), (54, 386678), (108, 193339), (397, 52596), (487, 42876), (794, 26298), (974, 21438), (1191, 17532), (1461, 14292), (1588, 13149), (1948, 10719), (2382, 8766), (2922, 7146), (3573, 5844), (4383, 4764)]