208390384

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{499}}^1\times {\mathrm{607}}^1$

素因数の和:1157

約数の個数: 40

約数和(自身を含む): 414656000

約数和(自身を除く): 206265616

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 499, 607, 688, 998, 1214, 1996, 2428, 3992, 4856, 7984, 9712, 21457, 26101, 42914, 52202, 85828, 104404, 171656, 208808, 302893, 343312, 417616, 605786, 1211572, 2423144, 4846288, 13024399, 26048798, 52097596, 104195192, 208390384]

約数ペア:

[(1, 208390384), (2, 104195192), (4, 52097596), (8, 26048798), (16, 13024399), (43, 4846288), (86, 2423144), (172, 1211572), (344, 605786), (499, 417616), (607, 343312), (688, 302893), (998, 208808), (1214, 171656), (1996, 104404), (2428, 85828), (3992, 52202), (4856, 42914), (7984, 26101), (9712, 21457)]