394990680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{470227}}^1$

素因数の和:470248

約数の個数: 64

約数和(自身を含む): 1354256640

約数和(自身を除く): 959265960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 470227, 940454, 1410681, 1880908, 2351135, 2821362, 3291589, 3761816, 4702270, 5642724, 6583178, 7053405, 9404540, 9874767, 11285448, 13166356, 14106810, 16457945, 18809080, 19749534, 26332712, 28213620, 32915890, 39499068, 49373835, 56427240, 65831780, 78998136, 98747670, 131663560, 197495340, 394990680]

約数ペア:

[(1, 394990680), (2, 197495340), (3, 131663560), (4, 98747670), (5, 78998136), (6, 65831780), (7, 56427240), (8, 49373835), (10, 39499068), (12, 32915890), (14, 28213620), (15, 26332712), (20, 19749534), (21, 18809080), (24, 16457945), (28, 14106810), (30, 13166356), (35, 11285448), (40, 9874767), (42, 9404540), (56, 7053405), (60, 6583178), (70, 5642724), (84, 4702270), (105, 3761816), (120, 3291589), (140, 2821362), (168, 2351135), (210, 1880908), (280, 1410681), (420, 940454), (840, 470227)]