64888880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{115873}}^1$

素因数の和:115893

約数の個数: 40

約数和(自身を含む): 172420512

約数和(自身を除く): 107531632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 115873, 231746, 463492, 579365, 811111, 926984, 1158730, 1622222, 1853968, 2317460, 3244444, 4055555, 4634920, 6488888, 8111110, 9269840, 12977776, 16222220, 32444440, 64888880]

約数ペア:

[(1, 64888880), (2, 32444440), (4, 16222220), (5, 12977776), (7, 9269840), (8, 8111110), (10, 6488888), (14, 4634920), (16, 4055555), (20, 3244444), (28, 2317460), (35, 1853968), (40, 1622222), (56, 1158730), (70, 926984), (80, 811111), (112, 579365), (140, 463492), (280, 231746), (560, 115873)]