28159000

素因数分解:

$2^3\times 5^3\times {\mathrm{29}}^1\times {\mathrm{971}}^1$

素因数の和:1021

約数の個数: 64

約数和(自身を含む): 68234400

約数和(自身を除く): 40075400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 125, 145, 200, 232, 250, 290, 500, 580, 725, 971, 1000, 1160, 1450, 1942, 2900, 3625, 3884, 4855, 5800, 7250, 7768, 9710, 14500, 19420, 24275, 28159, 29000, 38840, 48550, 56318, 97100, 112636, 121375, 140795, 194200, 225272, 242750, 281590, 485500, 563180, 703975, 971000, 1126360, 1407950, 2815900, 3519875, 5631800, 7039750, 14079500, 28159000]

約数ペア:

[(1, 28159000), (2, 14079500), (4, 7039750), (5, 5631800), (8, 3519875), (10, 2815900), (20, 1407950), (25, 1126360), (29, 971000), (40, 703975), (50, 563180), (58, 485500), (100, 281590), (116, 242750), (125, 225272), (145, 194200), (200, 140795), (232, 121375), (250, 112636), (290, 97100), (500, 56318), (580, 48550), (725, 38840), (971, 29000), (1000, 28159), (1160, 24275), (1450, 19420), (1942, 14500), (2900, 9710), (3625, 7768), (3884, 7250), (4855, 5800)]