68805040

素因数分解:

$2^4\times 5^1\times {\mathrm{860063}}^1$

素因数の和:860076

約数の個数: 20

約数和(自身を含む): 159971904

約数和(自身を除く): 91166864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 860063, 1720126, 3440252, 4300315, 6880504, 8600630, 13761008, 17201260, 34402520, 68805040]

約数ペア:

[(1, 68805040), (2, 34402520), (4, 17201260), (5, 13761008), (8, 8600630), (10, 6880504), (16, 4300315), (20, 3440252), (40, 1720126), (80, 860063)]