20148455

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1619}}^1$

素因数の和:1774

約数の個数: 16

約数和(自身を含む): 25660800

約数和(自身を除く): 5512345

約数列:

[1, 5, 19, 95, 131, 655, 1619, 2489, 8095, 12445, 30761, 153805, 212089, 1060445, 4029691, 20148455]

約数ペア:

[(1, 20148455), (5, 4029691), (19, 1060445), (95, 212089), (131, 153805), (655, 30761), (1619, 12445), (2489, 8095)]