1298920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4639}}^1$

素因数の和:4657

約数の個数: 32

約数和(自身を含む): 3340800

約数和(自身を除く): 2041880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4639, 9278, 18556, 23195, 32473, 37112, 46390, 64946, 92780, 129892, 162365, 185560, 259784, 324730, 649460, 1298920]

約数ペア:

[(1, 1298920), (2, 649460), (4, 324730), (5, 259784), (7, 185560), (8, 162365), (10, 129892), (14, 92780), (20, 64946), (28, 46390), (35, 37112), (40, 32473), (56, 23195), (70, 18556), (140, 9278), (280, 4639)]