213918180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{509329}}^1$

素因数の和:509348

約数の個数: 48

約数和(自身を含む): 684539520

約数和(自身を除く): 470621340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 509329, 1018658, 1527987, 2037316, 2546645, 3055974, 3565303, 5093290, 6111948, 7130606, 7639935, 10186580, 10695909, 14261212, 15279870, 17826515, 21391818, 30559740, 35653030, 42783636, 53479545, 71306060, 106959090, 213918180]

約数ペア:

[(1, 213918180), (2, 106959090), (3, 71306060), (4, 53479545), (5, 42783636), (6, 35653030), (7, 30559740), (10, 21391818), (12, 17826515), (14, 15279870), (15, 14261212), (20, 10695909), (21, 10186580), (28, 7639935), (30, 7130606), (35, 6111948), (42, 5093290), (60, 3565303), (70, 3055974), (84, 2546645), (105, 2037316), (140, 1527987), (210, 1018658), (420, 509329)]