208513725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1021}}^1$

素因数の和:1430

約数の個数: 48

約数和(自身を含む): 395391360

約数和(自身を除く): 186877635

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 389, 525, 1021, 1167, 1945, 2723, 3063, 5105, 5835, 7147, 8169, 9725, 13615, 15315, 21441, 25525, 29175, 35735, 40845, 68075, 76575, 107205, 178675, 204225, 397169, 536025, 1191507, 1985845, 2780183, 5957535, 8340549, 9929225, 13900915, 29787675, 41702745, 69504575, 208513725]

約数ペア:

[(1, 208513725), (3, 69504575), (5, 41702745), (7, 29787675), (15, 13900915), (21, 9929225), (25, 8340549), (35, 5957535), (75, 2780183), (105, 1985845), (175, 1191507), (389, 536025), (525, 397169), (1021, 204225), (1167, 178675), (1945, 107205), (2723, 76575), (3063, 68075), (5105, 40845), (5835, 35735), (7147, 29175), (8169, 25525), (9725, 21441), (13615, 15315)]