20675580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{677}}^1$

素因数の和:1198

約数の個数: 48

約数和(自身を含む): 58091040

約数和(自身を除く): 37415460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 509, 677, 1018, 1354, 1527, 2031, 2036, 2545, 2708, 3054, 3385, 4062, 5090, 6108, 6770, 7635, 8124, 10155, 10180, 13540, 15270, 20310, 30540, 40620, 344593, 689186, 1033779, 1378372, 1722965, 2067558, 3445930, 4135116, 5168895, 6891860, 10337790, 20675580]

約数ペア:

[(1, 20675580), (2, 10337790), (3, 6891860), (4, 5168895), (5, 4135116), (6, 3445930), (10, 2067558), (12, 1722965), (15, 1378372), (20, 1033779), (30, 689186), (60, 344593), (509, 40620), (677, 30540), (1018, 20310), (1354, 15270), (1527, 13540), (2031, 10180), (2036, 10155), (2545, 8124), (2708, 7635), (3054, 6770), (3385, 6108), (4062, 5090)]