1918895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:406

約数の個数: 16

約数和(自身を含む): 2540160

約数和(自身を除く): 621265

約数列:

[1, 5, 11, 55, 139, 251, 695, 1255, 1529, 2761, 7645, 13805, 34889, 174445, 383779, 1918895]

約数ペア:

[(1, 1918895), (5, 383779), (11, 174445), (55, 34889), (139, 13805), (251, 7645), (695, 2761), (1255, 1529)]