259851145

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{21221}}^1$

素因数の和:21336

約数の個数: 16

約数和(自身を含む): 325969920

約数和(自身を除く): 66118775

約数列:

[1, 5, 31, 79, 155, 395, 2449, 12245, 21221, 106105, 657851, 1676459, 3289255, 8382295, 51970229, 259851145]

約数ペア:

[(1, 259851145), (5, 51970229), (31, 8382295), (79, 3289255), (155, 1676459), (395, 657851), (2449, 106105), (12245, 21221)]