290000900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{4271}}^1$

素因数の和:4389

約数の個数: 72

約数和(自身を含む): 726786816

約数和(自身を除く): 436785916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 97, 100, 140, 175, 194, 350, 388, 485, 679, 700, 970, 1358, 1940, 2425, 2716, 3395, 4271, 4850, 6790, 8542, 9700, 13580, 16975, 17084, 21355, 29897, 33950, 42710, 59794, 67900, 85420, 106775, 119588, 149485, 213550, 298970, 414287, 427100, 597940, 747425, 828574, 1494850, 1657148, 2071435, 2900009, 2989700, 4142870, 5800018, 8285740, 10357175, 11600036, 14500045, 20714350, 29000090, 41428700, 58000180, 72500225, 145000450, 290000900]

約数ペア:

[(1, 290000900), (2, 145000450), (4, 72500225), (5, 58000180), (7, 41428700), (10, 29000090), (14, 20714350), (20, 14500045), (25, 11600036), (28, 10357175), (35, 8285740), (50, 5800018), (70, 4142870), (97, 2989700), (100, 2900009), (140, 2071435), (175, 1657148), (194, 1494850), (350, 828574), (388, 747425), (485, 597940), (679, 427100), (700, 414287), (970, 298970), (1358, 213550), (1940, 149485), (2425, 119588), (2716, 106775), (3395, 85420), (4271, 67900), (4850, 59794), (6790, 42710), (8542, 33950), (9700, 29897), (13580, 21355), (16975, 17084)]