2178640

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1$

素因数の和:367

約数の個数: 40

約数和(自身を含む): 5131368

約数和(自身を除く): 2952728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 241, 452, 482, 565, 904, 964, 1130, 1205, 1808, 1928, 2260, 2410, 3856, 4520, 4820, 9040, 9640, 19280, 27233, 54466, 108932, 136165, 217864, 272330, 435728, 544660, 1089320, 2178640]

約数ペア:

[(1, 2178640), (2, 1089320), (4, 544660), (5, 435728), (8, 272330), (10, 217864), (16, 136165), (20, 108932), (40, 54466), (80, 27233), (113, 19280), (226, 9640), (241, 9040), (452, 4820), (482, 4520), (565, 3856), (904, 2410), (964, 2260), (1130, 1928), (1205, 1808)]