20287764

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:115

約数の個数: 144

約数和(自身を含む): 62899200

約数和(自身を除く): 42611436

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 49, 53, 62, 63, 84, 93, 98, 106, 124, 126, 147, 159, 186, 196, 212, 217, 252, 279, 294, 318, 343, 371, 372, 434, 441, 477, 558, 588, 636, 651, 686, 742, 868, 882, 954, 1029, 1113, 1116, 1302, 1372, 1484, 1519, 1643, 1764, 1908, 1953, 2058, 2226, 2597, 2604, 3038, 3087, 3286, 3339, 3906, 4116, 4452, 4557, 4929, 5194, 6076, 6174, 6572, 6678, 7791, 7812, 9114, 9858, 10388, 10633, 11501, 12348, 13356, 13671, 14787, 15582, 18179, 18228, 19716, 21266, 23002, 23373, 27342, 29574, 31164, 31899, 34503, 36358, 42532, 46004, 46746, 54537, 54684, 59148, 63798, 69006, 72716, 80507, 93492, 95697, 103509, 109074, 127596, 138012, 161014, 163611, 191394, 207018, 218148, 241521, 322028, 327222, 382788, 414036, 483042, 563549, 654444, 724563, 966084, 1127098, 1449126, 1690647, 2254196, 2898252, 3381294, 5071941, 6762588, 10143882, 20287764]

約数ペア:

[(1, 20287764), (2, 10143882), (3, 6762588), (4, 5071941), (6, 3381294), (7, 2898252), (9, 2254196), (12, 1690647), (14, 1449126), (18, 1127098), (21, 966084), (28, 724563), (31, 654444), (36, 563549), (42, 483042), (49, 414036), (53, 382788), (62, 327222), (63, 322028), (84, 241521), (93, 218148), (98, 207018), (106, 191394), (124, 163611), (126, 161014), (147, 138012), (159, 127596), (186, 109074), (196, 103509), (212, 95697), (217, 93492), (252, 80507), (279, 72716), (294, 69006), (318, 63798), (343, 59148), (371, 54684), (372, 54537), (434, 46746), (441, 46004), (477, 42532), (558, 36358), (588, 34503), (636, 31899), (651, 31164), (686, 29574), (742, 27342), (868, 23373), (882, 23002), (954, 21266), (1029, 19716), (1113, 18228), (1116, 18179), (1302, 15582), (1372, 14787), (1484, 13671), (1519, 13356), (1643, 12348), (1764, 11501), (1908, 10633), (1953, 10388), (2058, 9858), (2226, 9114), (2597, 7812), (2604, 7791), (3038, 6678), (3087, 6572), (3286, 6174), (3339, 6076), (3906, 5194), (4116, 4929), (4452, 4557)]