278329520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{497017}}^1$

素因数の和:497037

約数の個数: 40

約数和(自身を含む): 739562784

約数和(自身を除く): 461233264

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 497017, 994034, 1988068, 2485085, 3479119, 3976136, 4970170, 6958238, 7952272, 9940340, 13916476, 17395595, 19880680, 27832952, 34791190, 39761360, 55665904, 69582380, 139164760, 278329520]

約数ペア:

[(1, 278329520), (2, 139164760), (4, 69582380), (5, 55665904), (7, 39761360), (8, 34791190), (10, 27832952), (14, 19880680), (16, 17395595), (20, 13916476), (28, 9940340), (35, 7952272), (40, 6958238), (56, 4970170), (70, 3976136), (80, 3479119), (112, 2485085), (140, 1988068), (280, 994034), (560, 497017)]