1991002495

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{2797}}^1$

素因数の和:3007

約数の個数: 32

約数和(自身を含む): 2578636800

約数和(自身を除く): 587634305

約数列:

[1, 5, 19, 59, 95, 127, 295, 635, 1121, 2413, 2797, 5605, 7493, 12065, 13985, 37465, 53143, 142367, 165023, 265715, 355219, 711835, 825115, 1776095, 3135437, 6749161, 15677185, 20957921, 33745805, 104789605, 398200499, 1991002495]

約数ペア:

[(1, 1991002495), (5, 398200499), (19, 104789605), (59, 33745805), (95, 20957921), (127, 15677185), (295, 6749161), (635, 3135437), (1121, 1776095), (2413, 825115), (2797, 711835), (5605, 355219), (7493, 265715), (12065, 165023), (13985, 142367), (37465, 53143)]