1991155

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:318

約数の個数: 16

約数和(自身を含む): 2517120

約数和(自身を除く): 525965

約数列:

[1, 5, 37, 47, 185, 229, 235, 1145, 1739, 8473, 8695, 10763, 42365, 53815, 398231, 1991155]

約数ペア:

[(1, 1991155), (5, 398231), (37, 53815), (47, 42365), (185, 10763), (229, 8695), (235, 8473), (1145, 1739)]