208434880

素因数分解:

$2^6\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1013}}^1$

素因数の和:1673

約数の個数: 56

約数和(自身を含む): 497598192

約数和(自身を除く): 289163312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 643, 1013, 1286, 2026, 2572, 3215, 4052, 5065, 5144, 6430, 8104, 10130, 10288, 12860, 16208, 20260, 20576, 25720, 32416, 40520, 41152, 51440, 64832, 81040, 102880, 162080, 205760, 324160, 651359, 1302718, 2605436, 3256795, 5210872, 6513590, 10421744, 13027180, 20843488, 26054360, 41686976, 52108720, 104217440, 208434880]

約数ペア:

[(1, 208434880), (2, 104217440), (4, 52108720), (5, 41686976), (8, 26054360), (10, 20843488), (16, 13027180), (20, 10421744), (32, 6513590), (40, 5210872), (64, 3256795), (80, 2605436), (160, 1302718), (320, 651359), (643, 324160), (1013, 205760), (1286, 162080), (2026, 102880), (2572, 81040), (3215, 64832), (4052, 51440), (5065, 41152), (5144, 40520), (6430, 32416), (8104, 25720), (10130, 20576), (10288, 20260), (12860, 16208)]