28470440

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3613}}^1$

素因数の和:3821

約数の個数: 32

約数和(自身を含む): 64401480

約数和(自身を除く): 35931040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3613, 3940, 7226, 7880, 14452, 18065, 28904, 36130, 72260, 144520, 711761, 1423522, 2847044, 3558805, 5694088, 7117610, 14235220, 28470440]

約数ペア:

[(1, 28470440), (2, 14235220), (4, 7117610), (5, 5694088), (8, 3558805), (10, 2847044), (20, 1423522), (40, 711761), (197, 144520), (394, 72260), (788, 36130), (985, 28904), (1576, 18065), (1970, 14452), (3613, 7880), (3940, 7226)]