19706680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70381}}^1$

素因数の和:70399

約数の個数: 32

約数和(自身を含む): 50675040

約数和(自身を除く): 30968360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70381, 140762, 281524, 351905, 492667, 563048, 703810, 985334, 1407620, 1970668, 2463335, 2815240, 3941336, 4926670, 9853340, 19706680]

約数ペア:

[(1, 19706680), (2, 9853340), (4, 4926670), (5, 3941336), (7, 2815240), (8, 2463335), (10, 1970668), (14, 1407620), (20, 985334), (28, 703810), (35, 563048), (40, 492667), (56, 351905), (70, 281524), (140, 140762), (280, 70381)]