20082160

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:183

約数の個数: 120

約数和(自身を含む): 55978560

約数和(自身を除く): 35896400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 49, 56, 70, 80, 94, 98, 109, 112, 140, 188, 196, 218, 235, 245, 280, 329, 376, 392, 436, 470, 490, 545, 560, 658, 752, 763, 784, 872, 940, 980, 1090, 1316, 1526, 1645, 1744, 1880, 1960, 2180, 2303, 2632, 3052, 3290, 3760, 3815, 3920, 4360, 4606, 5123, 5264, 5341, 6104, 6580, 7630, 8720, 9212, 10246, 10682, 11515, 12208, 13160, 15260, 18424, 20492, 21364, 23030, 25615, 26320, 26705, 30520, 35861, 36848, 40984, 42728, 46060, 51230, 53410, 61040, 71722, 81968, 85456, 92120, 102460, 106820, 143444, 179305, 184240, 204920, 213640, 251027, 286888, 358610, 409840, 427280, 502054, 573776, 717220, 1004108, 1255135, 1434440, 2008216, 2510270, 2868880, 4016432, 5020540, 10041080, 20082160]

約数ペア:

[(1, 20082160), (2, 10041080), (4, 5020540), (5, 4016432), (7, 2868880), (8, 2510270), (10, 2008216), (14, 1434440), (16, 1255135), (20, 1004108), (28, 717220), (35, 573776), (40, 502054), (47, 427280), (49, 409840), (56, 358610), (70, 286888), (80, 251027), (94, 213640), (98, 204920), (109, 184240), (112, 179305), (140, 143444), (188, 106820), (196, 102460), (218, 92120), (235, 85456), (245, 81968), (280, 71722), (329, 61040), (376, 53410), (392, 51230), (436, 46060), (470, 42728), (490, 40984), (545, 36848), (560, 35861), (658, 30520), (752, 26705), (763, 26320), (784, 25615), (872, 23030), (940, 21364), (980, 20492), (1090, 18424), (1316, 15260), (1526, 13160), (1645, 12208), (1744, 11515), (1880, 10682), (1960, 10246), (2180, 9212), (2303, 8720), (2632, 7630), (3052, 6580), (3290, 6104), (3760, 5341), (3815, 5264), (3920, 5123), (4360, 4606)]