18958000

素因数分解:

$2^4\times 5^3\times {\mathrm{9479}}^1$

素因数の和:9502

約数の個数: 40

約数和(自身を含む): 45845280

約数和(自身を除く): 26887280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 9479, 18958, 37916, 47395, 75832, 94790, 151664, 189580, 236975, 379160, 473950, 758320, 947900, 1184875, 1895800, 2369750, 3791600, 4739500, 9479000, 18958000]

約数ペア:

[(1, 18958000), (2, 9479000), (4, 4739500), (5, 3791600), (8, 2369750), (10, 1895800), (16, 1184875), (20, 947900), (25, 758320), (40, 473950), (50, 379160), (80, 236975), (100, 189580), (125, 151664), (200, 94790), (250, 75832), (400, 47395), (500, 37916), (1000, 18958), (2000, 9479)]