418051880

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{20533}}^1$

素因数の和:21053

約数の個数: 32

約数和(自身を含む): 942510600

約数和(自身を除く): 524458720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 10180, 20360, 20533, 41066, 82132, 102665, 164264, 205330, 410660, 821320, 10451297, 20902594, 41805188, 52256485, 83610376, 104512970, 209025940, 418051880]

約数ペア:

[(1, 418051880), (2, 209025940), (4, 104512970), (5, 83610376), (8, 52256485), (10, 41805188), (20, 20902594), (40, 10451297), (509, 821320), (1018, 410660), (2036, 205330), (2545, 164264), (4072, 102665), (5090, 82132), (10180, 41066), (20360, 20533)]