20307888980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{659}}^1\times {\mathrm{21107}}^1$

素因数の和:21848

約数の個数: 48

約数和(自身を含む): 43298418240

約数和(自身を除く): 22990529260

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 659, 730, 1318, 1460, 2636, 3295, 6590, 13180, 21107, 42214, 48107, 84428, 96214, 105535, 192428, 211070, 240535, 422140, 481070, 962140, 1540811, 3081622, 6163244, 7704055, 13909513, 15408110, 27819026, 30816220, 55638052, 69547565, 139095130, 278190260, 1015394449, 2030788898, 4061577796, 5076972245, 10153944490, 20307888980]

約数ペア:

[(1, 20307888980), (2, 10153944490), (4, 5076972245), (5, 4061577796), (10, 2030788898), (20, 1015394449), (73, 278190260), (146, 139095130), (292, 69547565), (365, 55638052), (659, 30816220), (730, 27819026), (1318, 15408110), (1460, 13909513), (2636, 7704055), (3295, 6163244), (6590, 3081622), (13180, 1540811), (21107, 962140), (42214, 481070), (48107, 422140), (84428, 240535), (96214, 211070), (105535, 192428)]