80990405

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{379}}^1\times {\mathrm{541}}^1$

素因数の和:1004

約数の個数: 16

約数和(自身を含む): 98860800

約数和(自身を除く): 17870395

約数列:

[1, 5, 79, 379, 395, 541, 1895, 2705, 29941, 42739, 149705, 205039, 213695, 1025195, 16198081, 80990405]

約数ペア:

[(1, 80990405), (5, 16198081), (79, 1025195), (379, 213695), (395, 205039), (541, 149705), (1895, 42739), (2705, 29941)]