20563440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1823}}^1$

素因数の和:1886

約数の個数: 80

約数和(自身を含む): 65138688

約数和(自身を除く): 44575248

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 47, 48, 60, 80, 94, 120, 141, 188, 235, 240, 282, 376, 470, 564, 705, 752, 940, 1128, 1410, 1823, 1880, 2256, 2820, 3646, 3760, 5469, 5640, 7292, 9115, 10938, 11280, 14584, 18230, 21876, 27345, 29168, 36460, 43752, 54690, 72920, 85681, 87504, 109380, 145840, 171362, 218760, 257043, 342724, 428405, 437520, 514086, 685448, 856810, 1028172, 1285215, 1370896, 1713620, 2056344, 2570430, 3427240, 4112688, 5140860, 6854480, 10281720, 20563440]

約数ペア:

[(1, 20563440), (2, 10281720), (3, 6854480), (4, 5140860), (5, 4112688), (6, 3427240), (8, 2570430), (10, 2056344), (12, 1713620), (15, 1370896), (16, 1285215), (20, 1028172), (24, 856810), (30, 685448), (40, 514086), (47, 437520), (48, 428405), (60, 342724), (80, 257043), (94, 218760), (120, 171362), (141, 145840), (188, 109380), (235, 87504), (240, 85681), (282, 72920), (376, 54690), (470, 43752), (564, 36460), (705, 29168), (752, 27345), (940, 21876), (1128, 18230), (1410, 14584), (1823, 11280), (1880, 10938), (2256, 9115), (2820, 7292), (3646, 5640), (3760, 5469)]