7970840

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2239}}^1$

素因数の和:2339

約数の個数: 32

約数和(自身を含む): 18144000

約数和(自身を除く): 10173160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 2239, 3560, 4478, 8956, 11195, 17912, 22390, 44780, 89560, 199271, 398542, 797084, 996355, 1594168, 1992710, 3985420, 7970840]

約数ペア:

[(1, 7970840), (2, 3985420), (4, 1992710), (5, 1594168), (8, 996355), (10, 797084), (20, 398542), (40, 199271), (89, 89560), (178, 44780), (356, 22390), (445, 17912), (712, 11195), (890, 8956), (1780, 4478), (2239, 3560)]