21026259200

素因数分解:

$2^8\times 5^2\times {\mathrm{3285353}}^1$

素因数の和:3285379

約数の個数: 54

約数和(自身を含む): 52043292714

約数和(自身を除く): 31017033514

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 6400, 3285353, 6570706, 13141412, 16426765, 26282824, 32853530, 52565648, 65707060, 82133825, 105131296, 131414120, 164267650, 210262592, 262828240, 328535300, 420525184, 525656480, 657070600, 841050368, 1051312960, 1314141200, 2102625920, 2628282400, 4205251840, 5256564800, 10513129600, 21026259200]

約数ペア:

[(1, 21026259200), (2, 10513129600), (4, 5256564800), (5, 4205251840), (8, 2628282400), (10, 2102625920), (16, 1314141200), (20, 1051312960), (25, 841050368), (32, 657070600), (40, 525656480), (50, 420525184), (64, 328535300), (80, 262828240), (100, 210262592), (128, 164267650), (160, 131414120), (200, 105131296), (256, 82133825), (320, 65707060), (400, 52565648), (640, 32853530), (800, 26282824), (1280, 16426765), (1600, 13141412), (3200, 6570706), (6400, 3285353)]