1940000

素因数分解:

$2^5\times 5^4\times {\mathrm{97}}^1$

素因数の和:127

約数の個数: 60

約数和(自身を含む): 4821894

約数和(自身を除く): 2881894

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 97, 100, 125, 160, 194, 200, 250, 388, 400, 485, 500, 625, 776, 800, 970, 1000, 1250, 1552, 1940, 2000, 2425, 2500, 3104, 3880, 4000, 4850, 5000, 7760, 9700, 10000, 12125, 15520, 19400, 20000, 24250, 38800, 48500, 60625, 77600, 97000, 121250, 194000, 242500, 388000, 485000, 970000, 1940000]

約数ペア:

[(1, 1940000), (2, 970000), (4, 485000), (5, 388000), (8, 242500), (10, 194000), (16, 121250), (20, 97000), (25, 77600), (32, 60625), (40, 48500), (50, 38800), (80, 24250), (97, 20000), (100, 19400), (125, 15520), (160, 12125), (194, 10000), (200, 9700), (250, 7760), (388, 5000), (400, 4850), (485, 4000), (500, 3880), (625, 3104), (776, 2500), (800, 2425), (970, 2000), (1000, 1940), (1250, 1552)]