61284440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{218873}}^1$

素因数の和:218891

約数の個数: 32

約数和(自身を含む): 157589280

約数和(自身を除く): 96304840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 218873, 437746, 875492, 1094365, 1532111, 1750984, 2188730, 3064222, 4377460, 6128444, 7660555, 8754920, 12256888, 15321110, 30642220, 61284440]

約数ペア:

[(1, 61284440), (2, 30642220), (4, 15321110), (5, 12256888), (7, 8754920), (8, 7660555), (10, 6128444), (14, 4377460), (20, 3064222), (28, 2188730), (35, 1750984), (40, 1532111), (56, 1094365), (70, 875492), (140, 437746), (280, 218873)]