21572800

素因数分解:

$2^6\times 5^2\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 84

約数和(自身を含む): 54015640

約数和(自身を除く): 32442840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 97, 100, 139, 160, 194, 200, 278, 320, 388, 400, 485, 556, 695, 776, 800, 970, 1112, 1390, 1552, 1600, 1940, 2224, 2425, 2780, 3104, 3475, 3880, 4448, 4850, 5560, 6208, 6950, 7760, 8896, 9700, 11120, 13483, 13900, 15520, 19400, 22240, 26966, 27800, 31040, 38800, 44480, 53932, 55600, 67415, 77600, 107864, 111200, 134830, 155200, 215728, 222400, 269660, 337075, 431456, 539320, 674150, 862912, 1078640, 1348300, 2157280, 2696600, 4314560, 5393200, 10786400, 21572800]

約数ペア:

[(1, 21572800), (2, 10786400), (4, 5393200), (5, 4314560), (8, 2696600), (10, 2157280), (16, 1348300), (20, 1078640), (25, 862912), (32, 674150), (40, 539320), (50, 431456), (64, 337075), (80, 269660), (97, 222400), (100, 215728), (139, 155200), (160, 134830), (194, 111200), (200, 107864), (278, 77600), (320, 67415), (388, 55600), (400, 53932), (485, 44480), (556, 38800), (695, 31040), (776, 27800), (800, 26966), (970, 22240), (1112, 19400), (1390, 15520), (1552, 13900), (1600, 13483), (1940, 11120), (2224, 9700), (2425, 8896), (2780, 7760), (3104, 6950), (3475, 6208), (3880, 5560), (4448, 4850)]