30887840

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2719}}^1$

素因数の和:2805

約数の個数: 48

約数和(自身を含む): 74027520

約数和(自身を除く): 43139680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2719, 2840, 5438, 5680, 10876, 11360, 13595, 21752, 27190, 43504, 54380, 87008, 108760, 193049, 217520, 386098, 435040, 772196, 965245, 1544392, 1930490, 3088784, 3860980, 6177568, 7721960, 15443920, 30887840]

約数ペア:

[(1, 30887840), (2, 15443920), (4, 7721960), (5, 6177568), (8, 3860980), (10, 3088784), (16, 1930490), (20, 1544392), (32, 965245), (40, 772196), (71, 435040), (80, 386098), (142, 217520), (160, 193049), (284, 108760), (355, 87008), (568, 54380), (710, 43504), (1136, 27190), (1420, 21752), (2272, 13595), (2719, 11360), (2840, 10876), (5438, 5680)]