20395800

素因数分解:

$2^3\times 3^4\times 5^2\times {\mathrm{1259}}^1$

素因数の和:1287

約数の個数: 120

約数和(自身を含む): 70893900

約数和(自身を除く): 50498100

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 30, 36, 40, 45, 50, 54, 60, 72, 75, 81, 90, 100, 108, 120, 135, 150, 162, 180, 200, 216, 225, 270, 300, 324, 360, 405, 450, 540, 600, 648, 675, 810, 900, 1080, 1259, 1350, 1620, 1800, 2025, 2518, 2700, 3240, 3777, 4050, 5036, 5400, 6295, 7554, 8100, 10072, 11331, 12590, 15108, 16200, 18885, 22662, 25180, 30216, 31475, 33993, 37770, 45324, 50360, 56655, 62950, 67986, 75540, 90648, 94425, 101979, 113310, 125900, 135972, 151080, 169965, 188850, 203958, 226620, 251800, 271944, 283275, 339930, 377700, 407916, 453240, 509895, 566550, 679860, 755400, 815832, 849825, 1019790, 1133100, 1359720, 1699650, 2039580, 2266200, 2549475, 3399300, 4079160, 5098950, 6798600, 10197900, 20395800]

約数ペア:

[(1, 20395800), (2, 10197900), (3, 6798600), (4, 5098950), (5, 4079160), (6, 3399300), (8, 2549475), (9, 2266200), (10, 2039580), (12, 1699650), (15, 1359720), (18, 1133100), (20, 1019790), (24, 849825), (25, 815832), (27, 755400), (30, 679860), (36, 566550), (40, 509895), (45, 453240), (50, 407916), (54, 377700), (60, 339930), (72, 283275), (75, 271944), (81, 251800), (90, 226620), (100, 203958), (108, 188850), (120, 169965), (135, 151080), (150, 135972), (162, 125900), (180, 113310), (200, 101979), (216, 94425), (225, 90648), (270, 75540), (300, 67986), (324, 62950), (360, 56655), (405, 50360), (450, 45324), (540, 37770), (600, 33993), (648, 31475), (675, 30216), (810, 25180), (900, 22662), (1080, 18885), (1259, 16200), (1350, 15108), (1620, 12590), (1800, 11331), (2025, 10072), (2518, 8100), (2700, 7554), (3240, 6295), (3777, 5400), (4050, 5036)]