20079990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31873}}^1$

素因数の和:31893

約数の個数: 48

約数和(自身を含む): 59668128

約数和(自身を除く): 39588138

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 31873, 63746, 95619, 159365, 191238, 223111, 286857, 318730, 446222, 478095, 573714, 669333, 956190, 1115555, 1338666, 1434285, 2007999, 2231110, 2868570, 3346665, 4015998, 6693330, 10039995, 20079990]

約数ペア:

[(1, 20079990), (2, 10039995), (3, 6693330), (5, 4015998), (6, 3346665), (7, 2868570), (9, 2231110), (10, 2007999), (14, 1434285), (15, 1338666), (18, 1115555), (21, 956190), (30, 669333), (35, 573714), (42, 478095), (45, 446222), (63, 318730), (70, 286857), (90, 223111), (105, 191238), (126, 159365), (210, 95619), (315, 63746), (630, 31873)]