2016918920

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{446221}}^1$

素因数の和:446345

約数の個数: 32

約数和(自身を含む): 4578237720

約数和(自身を除く): 2561318800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 446221, 892442, 1784884, 2231105, 3569768, 4462210, 8924420, 17848840, 50422973, 100845946, 201691892, 252114865, 403383784, 504229730, 1008459460, 2016918920]

約数ペア:

[(1, 2016918920), (2, 1008459460), (4, 504229730), (5, 403383784), (8, 252114865), (10, 201691892), (20, 100845946), (40, 50422973), (113, 17848840), (226, 8924420), (452, 4462210), (565, 3569768), (904, 2231105), (1130, 1784884), (2260, 892442), (4520, 446221)]