78520388

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{54377}}^1$

素因数の和:54419

約数の個数: 18

約数和(自身を含む): 145026126

約数和(自身を除く): 66505738

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 54377, 108754, 217508, 1033163, 2066326, 4132652, 19630097, 39260194, 78520388]

約数ペア:

[(1, 78520388), (2, 39260194), (4, 19630097), (19, 4132652), (38, 2066326), (76, 1033163), (361, 217508), (722, 108754), (1444, 54377)]