20199931895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1\times {\mathrm{1499}}^1$

素因数の和:1976

約数の個数: 64

約数和(自身を含む): 29175552000

約数和(自身を除く): 8975620105

約数列:

[1, 5, 11, 13, 47, 55, 65, 143, 235, 401, 517, 611, 715, 1499, 2005, 2585, 3055, 4411, 5213, 6721, 7495, 16489, 18847, 19487, 22055, 26065, 33605, 57343, 70453, 82445, 94235, 97435, 207317, 214357, 245011, 286715, 352265, 601099, 774983, 915889, 1036585, 1071785, 1225055, 2695121, 3005495, 3874915, 4579445, 6612089, 7814287, 10074779, 13475605, 28251653, 33060445, 39071435, 50373895, 85957157, 141258265, 310768183, 367271489, 429785785, 1553840915, 1836357445, 4039986379, 20199931895]

約数ペア:

[(1, 20199931895), (5, 4039986379), (11, 1836357445), (13, 1553840915), (47, 429785785), (55, 367271489), (65, 310768183), (143, 141258265), (235, 85957157), (401, 50373895), (517, 39071435), (611, 33060445), (715, 28251653), (1499, 13475605), (2005, 10074779), (2585, 7814287), (3055, 6612089), (4411, 4579445), (5213, 3874915), (6721, 3005495), (7495, 2695121), (16489, 1225055), (18847, 1071785), (19487, 1036585), (22055, 915889), (26065, 774983), (33605, 601099), (57343, 352265), (70453, 286715), (82445, 245011), (94235, 214357), (97435, 207317)]