2079457940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{209201}}^1$

素因数の和:209288

約数の個数: 48

約数和(自身を含む): 5061014784

約数和(自身を除く): 2981556844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 209201, 418402, 836804, 1046005, 1464407, 2092010, 2928814, 4184020, 5857628, 7322035, 14644070, 14853271, 29288140, 29706542, 59413084, 74266355, 103972897, 148532710, 207945794, 297065420, 415891588, 519864485, 1039728970, 2079457940]

約数ペア:

[(1, 2079457940), (2, 1039728970), (4, 519864485), (5, 415891588), (7, 297065420), (10, 207945794), (14, 148532710), (20, 103972897), (28, 74266355), (35, 59413084), (70, 29706542), (71, 29288140), (140, 14853271), (142, 14644070), (284, 7322035), (355, 5857628), (497, 4184020), (710, 2928814), (994, 2092010), (1420, 1464407), (1988, 1046005), (2485, 836804), (4970, 418402), (9940, 209201)]