51655720

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{5791}}^1$

素因数の和:6025

約数の個数: 32

約数和(自身を含む): 116766720

約数和(自身を除く): 65111000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 5791, 8920, 11582, 23164, 28955, 46328, 57910, 115820, 231640, 1291393, 2582786, 5165572, 6456965, 10331144, 12913930, 25827860, 51655720]

約数ペア:

[(1, 51655720), (2, 25827860), (4, 12913930), (5, 10331144), (8, 6456965), (10, 5165572), (20, 2582786), (40, 1291393), (223, 231640), (446, 115820), (892, 57910), (1115, 46328), (1784, 28955), (2230, 23164), (4460, 11582), (5791, 8920)]