216284920

素因数分解:

$2^3\times 5^1\times {\mathrm{2063}}^1\times {\mathrm{2621}}^1$

素因数の和:4695

約数の個数: 32

約数和(自身を含む): 487062720

約数和(自身を除く): 270777800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2063, 2621, 4126, 5242, 8252, 10315, 10484, 13105, 16504, 20630, 20968, 26210, 41260, 52420, 82520, 104840, 5407123, 10814246, 21628492, 27035615, 43256984, 54071230, 108142460, 216284920]

約数ペア:

[(1, 216284920), (2, 108142460), (4, 54071230), (5, 43256984), (8, 27035615), (10, 21628492), (20, 10814246), (40, 5407123), (2063, 104840), (2621, 82520), (4126, 52420), (5242, 41260), (8252, 26210), (10315, 20968), (10484, 20630), (13105, 16504)]