65917120

素因数分解:

$2^6\times 5^1\times {\mathrm{205991}}^1$

素因数の和:206008

約数の個数: 28

約数和(自身を含む): 156965904

約数和(自身を除く): 91048784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 205991, 411982, 823964, 1029955, 1647928, 2059910, 3295856, 4119820, 6591712, 8239640, 13183424, 16479280, 32958560, 65917120]

約数ペア:

[(1, 65917120), (2, 32958560), (4, 16479280), (5, 13183424), (8, 8239640), (10, 6591712), (16, 4119820), (20, 3295856), (32, 2059910), (40, 1647928), (64, 1029955), (80, 823964), (160, 411982), (320, 205991)]