485000

素因数分解:

$2^3\times 5^4\times {\mathrm{97}}^1$

素因数の和:123

約数の個数: 40

約数和(自身を含む): 1148070

約数和(自身を除く): 663070

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 125, 194, 200, 250, 388, 485, 500, 625, 776, 970, 1000, 1250, 1940, 2425, 2500, 3880, 4850, 5000, 9700, 12125, 19400, 24250, 48500, 60625, 97000, 121250, 242500, 485000]

約数ペア:

[(1, 485000), (2, 242500), (4, 121250), (5, 97000), (8, 60625), (10, 48500), (20, 24250), (25, 19400), (40, 12125), (50, 9700), (97, 5000), (100, 4850), (125, 3880), (194, 2500), (200, 2425), (250, 1940), (388, 1250), (485, 1000), (500, 970), (625, 776)]