20098960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1889}}^1$

素因数の和:1928

約数の個数: 80

約数和(自身を含む): 56246400

約数和(自身を除く): 36147440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 1889, 2128, 2660, 3778, 5320, 7556, 9445, 10640, 13223, 15112, 18890, 26446, 30224, 35891, 37780, 52892, 66115, 71782, 75560, 105784, 132230, 143564, 151120, 179455, 211568, 251237, 264460, 287128, 358910, 502474, 528920, 574256, 717820, 1004948, 1057840, 1256185, 1435640, 2009896, 2512370, 2871280, 4019792, 5024740, 10049480, 20098960]

約数ペア:

[(1, 20098960), (2, 10049480), (4, 5024740), (5, 4019792), (7, 2871280), (8, 2512370), (10, 2009896), (14, 1435640), (16, 1256185), (19, 1057840), (20, 1004948), (28, 717820), (35, 574256), (38, 528920), (40, 502474), (56, 358910), (70, 287128), (76, 264460), (80, 251237), (95, 211568), (112, 179455), (133, 151120), (140, 143564), (152, 132230), (190, 105784), (266, 75560), (280, 71782), (304, 66115), (380, 52892), (532, 37780), (560, 35891), (665, 30224), (760, 26446), (1064, 18890), (1330, 15112), (1520, 13223), (1889, 10640), (2128, 9445), (2660, 7556), (3778, 5320)]