81568156

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{2039}}^1$

素因数の和:2253

約数の個数: 24

約数和(自身を含む): 145827360

約数和(自身を除く): 64259204

約数列:

[1, 2, 4, 73, 137, 146, 274, 292, 548, 2039, 4078, 8156, 10001, 20002, 40004, 148847, 279343, 297694, 558686, 595388, 1117372, 20392039, 40784078, 81568156]

約数ペア:

[(1, 81568156), (2, 40784078), (4, 20392039), (73, 1117372), (137, 595388), (146, 558686), (274, 297694), (292, 279343), (548, 148847), (2039, 40004), (4078, 20002), (8156, 10001)]