66721055

素因数分解:

$5^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1\times {\mathrm{379}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 81177120

約数和(自身を除く): 14456065

約数列:

[1, 5, 137, 257, 379, 685, 1285, 1895, 35209, 51923, 97403, 176045, 259615, 487015, 13344211, 66721055]

約数ペア:

[(1, 66721055), (5, 13344211), (137, 487015), (257, 259615), (379, 176045), (685, 97403), (1285, 51923), (1895, 35209)]