7980458840

素因数分解:

$2^3\times 5^1\times {\mathrm{199511471}}^1$

素因数の和:199511482

約数の個数: 16

約数和(自身を含む): 17956032480

約数和(自身を除く): 9975573640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199511471, 399022942, 798045884, 997557355, 1596091768, 1995114710, 3990229420, 7980458840]

約数ペア:

[(1, 7980458840), (2, 3990229420), (4, 1995114710), (5, 1596091768), (8, 997557355), (10, 798045884), (20, 399022942), (40, 199511471)]