256868500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{929}}^1$

素因数の和:1034

約数の個数: 96

約数和(自身を含む): 649958400

約数和(自身を除く): 393089900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 79, 100, 125, 140, 158, 175, 250, 316, 350, 395, 500, 553, 700, 790, 875, 929, 1106, 1580, 1750, 1858, 1975, 2212, 2765, 3500, 3716, 3950, 4645, 5530, 6503, 7900, 9290, 9875, 11060, 13006, 13825, 18580, 19750, 23225, 26012, 27650, 32515, 39500, 46450, 55300, 65030, 69125, 73391, 92900, 116125, 130060, 138250, 146782, 162575, 232250, 276500, 293564, 325150, 366955, 464500, 513737, 650300, 733910, 812875, 1027474, 1467820, 1625750, 1834775, 2054948, 2568685, 3251500, 3669550, 5137370, 7339100, 9173875, 10274740, 12843425, 18347750, 25686850, 36695500, 51373700, 64217125, 128434250, 256868500]

約数ペア:

[(1, 256868500), (2, 128434250), (4, 64217125), (5, 51373700), (7, 36695500), (10, 25686850), (14, 18347750), (20, 12843425), (25, 10274740), (28, 9173875), (35, 7339100), (50, 5137370), (70, 3669550), (79, 3251500), (100, 2568685), (125, 2054948), (140, 1834775), (158, 1625750), (175, 1467820), (250, 1027474), (316, 812875), (350, 733910), (395, 650300), (500, 513737), (553, 464500), (700, 366955), (790, 325150), (875, 293564), (929, 276500), (1106, 232250), (1580, 162575), (1750, 146782), (1858, 138250), (1975, 130060), (2212, 116125), (2765, 92900), (3500, 73391), (3716, 69125), (3950, 65030), (4645, 55300), (5530, 46450), (6503, 39500), (7900, 32515), (9290, 27650), (9875, 26012), (11060, 23225), (13006, 19750), (13825, 18580)]