20619970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2753}}^1$

素因数の和:2874

約数の個数: 32

約数和(自身を含む): 42830208

約数和(自身を除く): 22210238

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 107, 214, 535, 749, 1070, 1498, 2753, 3745, 5506, 7490, 13765, 19271, 27530, 38542, 96355, 192710, 294571, 589142, 1472855, 2061997, 2945710, 4123994, 10309985, 20619970]

約数ペア:

[(1, 20619970), (2, 10309985), (5, 4123994), (7, 2945710), (10, 2061997), (14, 1472855), (35, 589142), (70, 294571), (107, 192710), (214, 96355), (535, 38542), (749, 27530), (1070, 19271), (1498, 13765), (2753, 7490), (3745, 5506)]