8212720

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{409}}^1$

素因数の和:673

約数の個数: 40

約数和(自身を含む): 19217520

約数和(自身を除く): 11004800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 409, 502, 818, 1004, 1255, 1636, 2008, 2045, 2510, 3272, 4016, 4090, 5020, 6544, 8180, 10040, 16360, 20080, 32720, 102659, 205318, 410636, 513295, 821272, 1026590, 1642544, 2053180, 4106360, 8212720]

約数ペア:

[(1, 8212720), (2, 4106360), (4, 2053180), (5, 1642544), (8, 1026590), (10, 821272), (16, 513295), (20, 410636), (40, 205318), (80, 102659), (251, 32720), (409, 20080), (502, 16360), (818, 10040), (1004, 8180), (1255, 6544), (1636, 5020), (2008, 4090), (2045, 4016), (2510, 3272)]