80468000

素因数分解:

$2^5\times 5^3\times {\mathrm{20117}}^1$

素因数の和:20142

約数の個数: 48

約数和(自身を含む): 197719704

約数和(自身を除く): 117251704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 20117, 40234, 80468, 100585, 160936, 201170, 321872, 402340, 502925, 643744, 804680, 1005850, 1609360, 2011700, 2514625, 3218720, 4023400, 5029250, 8046800, 10058500, 16093600, 20117000, 40234000, 80468000]

約数ペア:

[(1, 80468000), (2, 40234000), (4, 20117000), (5, 16093600), (8, 10058500), (10, 8046800), (16, 5029250), (20, 4023400), (25, 3218720), (32, 2514625), (40, 2011700), (50, 1609360), (80, 1005850), (100, 804680), (125, 643744), (160, 502925), (200, 402340), (250, 321872), (400, 201170), (500, 160936), (800, 100585), (1000, 80468), (2000, 40234), (4000, 20117)]