279525680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{809}}^1$

素因数の和:1446

約数の個数: 80

約数和(自身を含む): 744863040

約数和(自身を除く): 465337360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 617, 809, 1234, 1618, 2468, 3085, 3236, 4045, 4319, 4936, 5663, 6170, 6472, 8090, 8638, 9872, 11326, 12340, 12944, 16180, 17276, 21595, 22652, 24680, 28315, 32360, 34552, 43190, 45304, 49360, 56630, 64720, 69104, 86380, 90608, 113260, 172760, 226520, 345520, 453040, 499153, 998306, 1996612, 2495765, 3494071, 3993224, 4991530, 6988142, 7986448, 9983060, 13976284, 17470355, 19966120, 27952568, 34940710, 39932240, 55905136, 69881420, 139762840, 279525680]

約数ペア:

[(1, 279525680), (2, 139762840), (4, 69881420), (5, 55905136), (7, 39932240), (8, 34940710), (10, 27952568), (14, 19966120), (16, 17470355), (20, 13976284), (28, 9983060), (35, 7986448), (40, 6988142), (56, 4991530), (70, 3993224), (80, 3494071), (112, 2495765), (140, 1996612), (280, 998306), (560, 499153), (617, 453040), (809, 345520), (1234, 226520), (1618, 172760), (2468, 113260), (3085, 90608), (3236, 86380), (4045, 69104), (4319, 64720), (4936, 56630), (5663, 49360), (6170, 45304), (6472, 43190), (8090, 34552), (8638, 32360), (9872, 28315), (11326, 24680), (12340, 22652), (12944, 21595), (16180, 17276)]