2078668420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{47221}}^1$

素因数の和:47332

約数の個数: 48

約数和(自身を含む): 4569578496

約数和(自身を除く): 2490910076

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 1420, 2201, 4402, 8804, 11005, 22010, 44020, 47221, 94442, 188884, 236105, 472210, 944420, 1463851, 2927702, 3352691, 5855404, 6705382, 7319255, 13410764, 14638510, 16763455, 29277020, 33526910, 67053820, 103933421, 207866842, 415733684, 519667105, 1039334210, 2078668420]

約数ペア:

[(1, 2078668420), (2, 1039334210), (4, 519667105), (5, 415733684), (10, 207866842), (20, 103933421), (31, 67053820), (62, 33526910), (71, 29277020), (124, 16763455), (142, 14638510), (155, 13410764), (284, 7319255), (310, 6705382), (355, 5855404), (620, 3352691), (710, 2927702), (1420, 1463851), (2201, 944420), (4402, 472210), (8804, 236105), (11005, 188884), (22010, 94442), (44020, 47221)]