1298804920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4638589}}^1$

素因数の和:4638607

約数の個数: 32

約数和(自身を含む): 3339784800

約数和(自身を除く): 2040979880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4638589, 9277178, 18554356, 23192945, 32470123, 37108712, 46385890, 64940246, 92771780, 129880492, 162350615, 185543560, 259760984, 324701230, 649402460, 1298804920]

約数ペア:

[(1, 1298804920), (2, 649402460), (4, 324701230), (5, 259760984), (7, 185543560), (8, 162350615), (10, 129880492), (14, 92771780), (20, 64940246), (28, 46385890), (35, 37108712), (40, 32470123), (56, 23192945), (70, 18554356), (140, 9277178), (280, 4638589)]