21890520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{20269}}^1$

素因数の和:20289

約数の個数: 64

約数和(自身を含む): 72972000

約数和(自身を除く): 51081480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 20269, 40538, 60807, 81076, 101345, 121614, 162152, 182421, 202690, 243228, 304035, 364842, 405380, 486456, 547263, 608070, 729684, 810760, 912105, 1094526, 1216140, 1459368, 1824210, 2189052, 2432280, 2736315, 3648420, 4378104, 5472630, 7296840, 10945260, 21890520]

約数ペア:

[(1, 21890520), (2, 10945260), (3, 7296840), (4, 5472630), (5, 4378104), (6, 3648420), (8, 2736315), (9, 2432280), (10, 2189052), (12, 1824210), (15, 1459368), (18, 1216140), (20, 1094526), (24, 912105), (27, 810760), (30, 729684), (36, 608070), (40, 547263), (45, 486456), (54, 405380), (60, 364842), (72, 304035), (90, 243228), (108, 202690), (120, 182421), (135, 162152), (180, 121614), (216, 101345), (270, 81076), (360, 60807), (540, 40538), (1080, 20269)]