20680020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{114889}}^1$

素因数の和:114904

約数の個数: 36

約数和(自身を含む): 62729940

約数和(自身を除く): 42049920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 114889, 229778, 344667, 459556, 574445, 689334, 1034001, 1148890, 1378668, 1723335, 2068002, 2297780, 3446670, 4136004, 5170005, 6893340, 10340010, 20680020]

約数ペア:

[(1, 20680020), (2, 10340010), (3, 6893340), (4, 5170005), (5, 4136004), (6, 3446670), (9, 2297780), (10, 2068002), (12, 1723335), (15, 1378668), (18, 1148890), (20, 1034001), (30, 689334), (36, 574445), (45, 459556), (60, 344667), (90, 229778), (180, 114889)]