18590700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2047

約数の個数: 72

約数和(自身を含む): 55552000

約数和(自身を除く): 36961300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 31, 50, 60, 62, 75, 93, 100, 124, 150, 155, 186, 300, 310, 372, 465, 620, 775, 930, 1550, 1860, 1999, 2325, 3100, 3998, 4650, 5997, 7996, 9300, 9995, 11994, 19990, 23988, 29985, 39980, 49975, 59970, 61969, 99950, 119940, 123938, 149925, 185907, 199900, 247876, 299850, 309845, 371814, 599700, 619690, 743628, 929535, 1239380, 1549225, 1859070, 3098450, 3718140, 4647675, 6196900, 9295350, 18590700]

約数ペア:

[(1, 18590700), (2, 9295350), (3, 6196900), (4, 4647675), (5, 3718140), (6, 3098450), (10, 1859070), (12, 1549225), (15, 1239380), (20, 929535), (25, 743628), (30, 619690), (31, 599700), (50, 371814), (60, 309845), (62, 299850), (75, 247876), (93, 199900), (100, 185907), (124, 149925), (150, 123938), (155, 119940), (186, 99950), (300, 61969), (310, 59970), (372, 49975), (465, 39980), (620, 29985), (775, 23988), (930, 19990), (1550, 11994), (1860, 9995), (1999, 9300), (2325, 7996), (3100, 5997), (3998, 4650)]