20228220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1031}}^1$

素因数の和:1155

約数の個数: 72

約数和(自身を含む): 61981920

約数和(自身を除く): 41753700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1031, 1090, 1308, 1635, 1962, 2062, 2180, 3093, 3270, 3924, 4124, 4905, 5155, 6186, 6540, 9279, 9810, 10310, 12372, 15465, 18558, 19620, 20620, 30930, 37116, 46395, 61860, 92790, 112379, 185580, 224758, 337137, 449516, 561895, 674274, 1011411, 1123790, 1348548, 1685685, 2022822, 2247580, 3371370, 4045644, 5057055, 6742740, 10114110, 20228220]

約数ペア:

[(1, 20228220), (2, 10114110), (3, 6742740), (4, 5057055), (5, 4045644), (6, 3371370), (9, 2247580), (10, 2022822), (12, 1685685), (15, 1348548), (18, 1123790), (20, 1011411), (30, 674274), (36, 561895), (45, 449516), (60, 337137), (90, 224758), (109, 185580), (180, 112379), (218, 92790), (327, 61860), (436, 46395), (545, 37116), (654, 30930), (981, 20620), (1031, 19620), (1090, 18558), (1308, 15465), (1635, 12372), (1962, 10310), (2062, 9810), (2180, 9279), (3093, 6540), (3270, 6186), (3924, 5155), (4124, 4905)]