79921985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{111779}}^1$

素因数の和:111808

約数の個数: 16

約数和(自身を含む): 112674240

約数和(自身を除く): 32752255

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 111779, 558895, 1229569, 1453127, 6147845, 7265635, 15984397, 79921985]

約数ペア:

[(1, 79921985), (5, 15984397), (11, 7265635), (13, 6147845), (55, 1453127), (65, 1229569), (143, 558895), (715, 111779)]