20163080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{673}}^1$

素因数の和:798

約数の個数: 64

約数和(自身を含む): 52410240

約数和(自身を除く): 32247160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 107, 140, 214, 280, 428, 535, 673, 749, 856, 1070, 1346, 1498, 2140, 2692, 2996, 3365, 3745, 4280, 4711, 5384, 5992, 6730, 7490, 9422, 13460, 14980, 18844, 23555, 26920, 29960, 37688, 47110, 72011, 94220, 144022, 188440, 288044, 360055, 504077, 576088, 720110, 1008154, 1440220, 2016308, 2520385, 2880440, 4032616, 5040770, 10081540, 20163080]

約数ペア:

[(1, 20163080), (2, 10081540), (4, 5040770), (5, 4032616), (7, 2880440), (8, 2520385), (10, 2016308), (14, 1440220), (20, 1008154), (28, 720110), (35, 576088), (40, 504077), (56, 360055), (70, 288044), (107, 188440), (140, 144022), (214, 94220), (280, 72011), (428, 47110), (535, 37688), (673, 29960), (749, 26920), (856, 23555), (1070, 18844), (1346, 14980), (1498, 13460), (2140, 9422), (2692, 7490), (2996, 6730), (3365, 5992), (3745, 5384), (4280, 4711)]