39580000

素因数分解:

$2^5\times 5^4\times {\mathrm{1979}}^1$

素因数の和:2009

約数の個数: 60

約数和(自身を含む): 97421940

約数和(自身を除く): 57841940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 1979, 2000, 2500, 3958, 4000, 5000, 7916, 9895, 10000, 15832, 19790, 20000, 31664, 39580, 49475, 63328, 79160, 98950, 158320, 197900, 247375, 316640, 395800, 494750, 791600, 989500, 1236875, 1583200, 1979000, 2473750, 3958000, 4947500, 7916000, 9895000, 19790000, 39580000]

約数ペア:

[(1, 39580000), (2, 19790000), (4, 9895000), (5, 7916000), (8, 4947500), (10, 3958000), (16, 2473750), (20, 1979000), (25, 1583200), (32, 1236875), (40, 989500), (50, 791600), (80, 494750), (100, 395800), (125, 316640), (160, 247375), (200, 197900), (250, 158320), (400, 98950), (500, 79160), (625, 63328), (800, 49475), (1000, 39580), (1250, 31664), (1979, 20000), (2000, 19790), (2500, 15832), (3958, 10000), (4000, 9895), (5000, 7916)]