20947560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{769}}^1$

素因数の和:1010

約数の個数: 64

約数和(自身を含む): 63201600

約数和(自身を除く): 42254040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 227, 454, 681, 769, 908, 1135, 1362, 1538, 1816, 2270, 2307, 2724, 3076, 3405, 3845, 4540, 4614, 5448, 6152, 6810, 7690, 9080, 9228, 11535, 13620, 15380, 18456, 23070, 27240, 30760, 46140, 92280, 174563, 349126, 523689, 698252, 872815, 1047378, 1396504, 1745630, 2094756, 2618445, 3491260, 4189512, 5236890, 6982520, 10473780, 20947560]

約数ペア:

[(1, 20947560), (2, 10473780), (3, 6982520), (4, 5236890), (5, 4189512), (6, 3491260), (8, 2618445), (10, 2094756), (12, 1745630), (15, 1396504), (20, 1047378), (24, 872815), (30, 698252), (40, 523689), (60, 349126), (120, 174563), (227, 92280), (454, 46140), (681, 30760), (769, 27240), (908, 23070), (1135, 18456), (1362, 15380), (1538, 13620), (1816, 11535), (2270, 9228), (2307, 9080), (2724, 7690), (3076, 6810), (3405, 6152), (3845, 5448), (4540, 4614)]