8018500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:134

約数の個数: 96

約数和(自身を含む): 20966400

約数和(自身を除く): 12947900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 79, 100, 116, 125, 140, 145, 158, 175, 203, 250, 290, 316, 350, 395, 406, 500, 553, 580, 700, 725, 790, 812, 875, 1015, 1106, 1450, 1580, 1750, 1975, 2030, 2212, 2291, 2765, 2900, 3500, 3625, 3950, 4060, 4582, 5075, 5530, 7250, 7900, 9164, 9875, 10150, 11060, 11455, 13825, 14500, 16037, 19750, 20300, 22910, 25375, 27650, 32074, 39500, 45820, 50750, 55300, 57275, 64148, 69125, 80185, 101500, 114550, 138250, 160370, 229100, 276500, 286375, 320740, 400925, 572750, 801850, 1145500, 1603700, 2004625, 4009250, 8018500]

約数ペア:

[(1, 8018500), (2, 4009250), (4, 2004625), (5, 1603700), (7, 1145500), (10, 801850), (14, 572750), (20, 400925), (25, 320740), (28, 286375), (29, 276500), (35, 229100), (50, 160370), (58, 138250), (70, 114550), (79, 101500), (100, 80185), (116, 69125), (125, 64148), (140, 57275), (145, 55300), (158, 50750), (175, 45820), (203, 39500), (250, 32074), (290, 27650), (316, 25375), (350, 22910), (395, 20300), (406, 19750), (500, 16037), (553, 14500), (580, 13825), (700, 11455), (725, 11060), (790, 10150), (812, 9875), (875, 9164), (1015, 7900), (1106, 7250), (1450, 5530), (1580, 5075), (1750, 4582), (1975, 4060), (2030, 3950), (2212, 3625), (2291, 3500), (2765, 2900)]