203413640

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{21101}}^1$

素因数の和:21353

約数の個数: 32

約数和(自身を含む): 459601560

約数和(自身を除く): 256187920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 9640, 21101, 42202, 84404, 105505, 168808, 211010, 422020, 844040, 5085341, 10170682, 20341364, 25426705, 40682728, 50853410, 101706820, 203413640]

約数ペア:

[(1, 203413640), (2, 101706820), (4, 50853410), (5, 40682728), (8, 25426705), (10, 20341364), (20, 10170682), (40, 5085341), (241, 844040), (482, 422020), (964, 211010), (1205, 168808), (1928, 105505), (2410, 84404), (4820, 42202), (9640, 21101)]