205900915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{120763}}^1$

素因数の和:120810

約数の個数: 16

約数和(自身を含む): 278240256

約数和(自身を除く): 72339341

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 120763, 603815, 1328393, 3743653, 6641965, 18718265, 41180183, 205900915]

約数ペア:

[(1, 205900915), (5, 41180183), (11, 18718265), (31, 6641965), (55, 3743653), (155, 1328393), (341, 603815), (1705, 120763)]