28706580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22783}}^1$

素因数の和:22805

約数の個数: 72

約数和(自身を含む): 99520512

約数和(自身を除く): 70813932

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 22783, 45566, 68349, 91132, 113915, 136698, 159481, 205047, 227830, 273396, 318962, 341745, 410094, 455660, 478443, 637924, 683490, 797405, 820188, 956886, 1025235, 1366980, 1435329, 1594810, 1913772, 2050470, 2392215, 2870658, 3189620, 4100940, 4784430, 5741316, 7176645, 9568860, 14353290, 28706580]

約数ペア:

[(1, 28706580), (2, 14353290), (3, 9568860), (4, 7176645), (5, 5741316), (6, 4784430), (7, 4100940), (9, 3189620), (10, 2870658), (12, 2392215), (14, 2050470), (15, 1913772), (18, 1594810), (20, 1435329), (21, 1366980), (28, 1025235), (30, 956886), (35, 820188), (36, 797405), (42, 683490), (45, 637924), (60, 478443), (63, 455660), (70, 410094), (84, 341745), (90, 318962), (105, 273396), (126, 227830), (140, 205047), (180, 159481), (210, 136698), (252, 113915), (315, 91132), (420, 68349), (630, 45566), (1260, 22783)]