678615280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1211813}}^1$

素因数の和:1211833

約数の個数: 40

約数和(自身を含む): 1803179232

約数和(自身を除く): 1124563952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1211813, 2423626, 4847252, 6059065, 8482691, 9694504, 12118130, 16965382, 19389008, 24236260, 33930764, 42413455, 48472520, 67861528, 84826910, 96945040, 135723056, 169653820, 339307640, 678615280]

約数ペア:

[(1, 678615280), (2, 339307640), (4, 169653820), (5, 135723056), (7, 96945040), (8, 84826910), (10, 67861528), (14, 48472520), (16, 42413455), (20, 33930764), (28, 24236260), (35, 19389008), (40, 16965382), (56, 12118130), (70, 9694504), (80, 8482691), (112, 6059065), (140, 4847252), (280, 2423626), (560, 1211813)]