21656000

素因数分解:

$2^6\times 5^3\times {\mathrm{2707}}^1$

素因数の和:2734

約数の個数: 56

約数和(自身を含む): 53650896

約数和(自身を除く): 31994896

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, 2707, 4000, 5414, 8000, 10828, 13535, 21656, 27070, 43312, 54140, 67675, 86624, 108280, 135350, 173248, 216560, 270700, 338375, 433120, 541400, 676750, 866240, 1082800, 1353500, 2165600, 2707000, 4331200, 5414000, 10828000, 21656000]

約数ペア:

[(1, 21656000), (2, 10828000), (4, 5414000), (5, 4331200), (8, 2707000), (10, 2165600), (16, 1353500), (20, 1082800), (25, 866240), (32, 676750), (40, 541400), (50, 433120), (64, 338375), (80, 270700), (100, 216560), (125, 173248), (160, 135350), (200, 108280), (250, 86624), (320, 67675), (400, 54140), (500, 43312), (800, 27070), (1000, 21656), (1600, 13535), (2000, 10828), (2707, 8000), (4000, 5414)]