87774920

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{11027}}^1$

素因数の和:11237

約数の個数: 32

約数和(自身を含む): 198504000

約数和(自身を除く): 110729080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 11027, 22054, 44108, 55135, 88216, 110270, 220540, 441080, 2194373, 4388746, 8777492, 10971865, 17554984, 21943730, 43887460, 87774920]

約数ペア:

[(1, 87774920), (2, 43887460), (4, 21943730), (5, 17554984), (8, 10971865), (10, 8777492), (20, 4388746), (40, 2194373), (199, 441080), (398, 220540), (796, 110270), (995, 88216), (1592, 55135), (1990, 44108), (3980, 22054), (7960, 11027)]