51501080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21107}}^1$

素因数の和:21179

約数の個数: 32

約数和(自身を含む): 117782640

約数和(自身を除く): 66281560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 21107, 42214, 84428, 105535, 168856, 211070, 422140, 844280, 1287527, 2575054, 5150108, 6437635, 10300216, 12875270, 25750540, 51501080]

約数ペア:

[(1, 51501080), (2, 25750540), (4, 12875270), (5, 10300216), (8, 6437635), (10, 5150108), (20, 2575054), (40, 1287527), (61, 844280), (122, 422140), (244, 211070), (305, 168856), (488, 105535), (610, 84428), (1220, 42214), (2440, 21107)]