8240720

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{431}}^1$

素因数の和:683

約数の個数: 40

約数和(自身を含む): 19284480

約数和(自身を除く): 11043760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 431, 478, 862, 956, 1195, 1724, 1912, 2155, 2390, 3448, 3824, 4310, 4780, 6896, 8620, 9560, 17240, 19120, 34480, 103009, 206018, 412036, 515045, 824072, 1030090, 1648144, 2060180, 4120360, 8240720]

約数ペア:

[(1, 8240720), (2, 4120360), (4, 2060180), (5, 1648144), (8, 1030090), (10, 824072), (16, 515045), (20, 412036), (40, 206018), (80, 103009), (239, 34480), (431, 19120), (478, 17240), (862, 9560), (956, 8620), (1195, 6896), (1724, 4780), (1912, 4310), (2155, 3824), (2390, 3448)]