20657700

素因数分解:

$2^2\times 3^3\times 5^2\times 7^1\times {\mathrm{1093}}^1$

素因数の和:1123

約数の個数: 144

約数和(自身を含む): 75967360

約数和(自身を除く): 55309660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 84, 90, 100, 105, 108, 126, 135, 140, 150, 175, 180, 189, 210, 225, 252, 270, 300, 315, 350, 378, 420, 450, 525, 540, 630, 675, 700, 756, 900, 945, 1050, 1093, 1260, 1350, 1575, 1890, 2100, 2186, 2700, 3150, 3279, 3780, 4372, 4725, 5465, 6300, 6558, 7651, 9450, 9837, 10930, 13116, 15302, 16395, 18900, 19674, 21860, 22953, 27325, 29511, 30604, 32790, 38255, 39348, 45906, 49185, 54650, 59022, 65580, 68859, 76510, 81975, 91812, 98370, 109300, 114765, 118044, 137718, 147555, 153020, 163950, 191275, 196740, 206577, 229530, 245925, 275436, 295110, 327900, 344295, 382550, 413154, 459060, 491850, 573825, 590220, 688590, 737775, 765100, 826308, 983700, 1032885, 1147650, 1377180, 1475550, 1721475, 2065770, 2295300, 2951100, 3442950, 4131540, 5164425, 6885900, 10328850, 20657700]

約数ペア:

[(1, 20657700), (2, 10328850), (3, 6885900), (4, 5164425), (5, 4131540), (6, 3442950), (7, 2951100), (9, 2295300), (10, 2065770), (12, 1721475), (14, 1475550), (15, 1377180), (18, 1147650), (20, 1032885), (21, 983700), (25, 826308), (27, 765100), (28, 737775), (30, 688590), (35, 590220), (36, 573825), (42, 491850), (45, 459060), (50, 413154), (54, 382550), (60, 344295), (63, 327900), (70, 295110), (75, 275436), (84, 245925), (90, 229530), (100, 206577), (105, 196740), (108, 191275), (126, 163950), (135, 153020), (140, 147555), (150, 137718), (175, 118044), (180, 114765), (189, 109300), (210, 98370), (225, 91812), (252, 81975), (270, 76510), (300, 68859), (315, 65580), (350, 59022), (378, 54650), (420, 49185), (450, 45906), (525, 39348), (540, 38255), (630, 32790), (675, 30604), (700, 29511), (756, 27325), (900, 22953), (945, 21860), (1050, 19674), (1093, 18900), (1260, 16395), (1350, 15302), (1575, 13116), (1890, 10930), (2100, 9837), (2186, 9450), (2700, 7651), (3150, 6558), (3279, 6300), (3780, 5465), (4372, 4725)]