620800

素因数分解:

$2^8\times 5^2\times {\mathrm{97}}^1$

素因数の和:123

約数の個数: 54

約数和(自身を含む): 1552418

約数和(自身を除く): 931618

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 97, 100, 128, 160, 194, 200, 256, 320, 388, 400, 485, 640, 776, 800, 970, 1280, 1552, 1600, 1940, 2425, 3104, 3200, 3880, 4850, 6208, 6400, 7760, 9700, 12416, 15520, 19400, 24832, 31040, 38800, 62080, 77600, 124160, 155200, 310400, 620800]

約数ペア:

[(1, 620800), (2, 310400), (4, 155200), (5, 124160), (8, 77600), (10, 62080), (16, 38800), (20, 31040), (25, 24832), (32, 19400), (40, 15520), (50, 12416), (64, 9700), (80, 7760), (97, 6400), (100, 6208), (128, 4850), (160, 3880), (194, 3200), (200, 3104), (256, 2425), (320, 1940), (388, 1600), (400, 1552), (485, 1280), (640, 970), (776, 800)]