160408000

素因数分解:

$2^6\times 5^3\times {\mathrm{20051}}^1$

素因数の和:20078

約数の個数: 56

約数和(自身を含む): 397270224

約数和(自身を除く): 236862224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 4000, 8000, 20051, 40102, 80204, 100255, 160408, 200510, 320816, 401020, 501275, 641632, 802040, 1002550, 1283264, 1604080, 2005100, 2506375, 3208160, 4010200, 5012750, 6416320, 8020400, 10025500, 16040800, 20051000, 32081600, 40102000, 80204000, 160408000]

約数ペア:

[(1, 160408000), (2, 80204000), (4, 40102000), (5, 32081600), (8, 20051000), (10, 16040800), (16, 10025500), (20, 8020400), (25, 6416320), (32, 5012750), (40, 4010200), (50, 3208160), (64, 2506375), (80, 2005100), (100, 1604080), (125, 1283264), (160, 1002550), (200, 802040), (250, 641632), (320, 501275), (400, 401020), (500, 320816), (800, 200510), (1000, 160408), (1600, 100255), (2000, 80204), (4000, 40102), (8000, 20051)]