128878465

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{18911}}^1$

素因数の和:18992

約数の個数: 16

約数和(自身を含む): 163399680

約数和(自身を除く): 34521215

約数列:

[1, 5, 29, 47, 145, 235, 1363, 6815, 18911, 94555, 548419, 888817, 2742095, 4444085, 25775693, 128878465]

約数ペア:

[(1, 128878465), (5, 25775693), (29, 4444085), (47, 2742095), (145, 888817), (235, 548419), (1363, 94555), (6815, 18911)]