81800460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64921}}^1$

素因数の和:64943

約数の個数: 72

約数和(自身を含む): 283579296

約数和(自身を除く): 201778836

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 64921, 129842, 194763, 259684, 324605, 389526, 454447, 584289, 649210, 779052, 908894, 973815, 1168578, 1298420, 1363341, 1817788, 1947630, 2272235, 2337156, 2726682, 2921445, 3895260, 4090023, 4544470, 5453364, 5842890, 6816705, 8180046, 9088940, 11685780, 13633410, 16360092, 20450115, 27266820, 40900230, 81800460]

約数ペア:

[(1, 81800460), (2, 40900230), (3, 27266820), (4, 20450115), (5, 16360092), (6, 13633410), (7, 11685780), (9, 9088940), (10, 8180046), (12, 6816705), (14, 5842890), (15, 5453364), (18, 4544470), (20, 4090023), (21, 3895260), (28, 2921445), (30, 2726682), (35, 2337156), (36, 2272235), (42, 1947630), (45, 1817788), (60, 1363341), (63, 1298420), (70, 1168578), (84, 973815), (90, 908894), (105, 779052), (126, 649210), (140, 584289), (180, 454447), (210, 389526), (252, 324605), (315, 259684), (420, 194763), (630, 129842), (1260, 64921)]