20207200

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:129

約数の個数: 144

約数和(自身を含む): 55777680

約数和(自身を除く): 35570480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 29, 32, 40, 50, 52, 58, 65, 67, 80, 100, 104, 116, 130, 134, 145, 160, 200, 208, 232, 260, 268, 290, 325, 335, 377, 400, 416, 464, 520, 536, 580, 650, 670, 725, 754, 800, 871, 928, 1040, 1072, 1160, 1300, 1340, 1450, 1508, 1675, 1742, 1885, 1943, 2080, 2144, 2320, 2600, 2680, 2900, 3016, 3350, 3484, 3770, 3886, 4355, 4640, 5200, 5360, 5800, 6032, 6700, 6968, 7540, 7772, 8710, 9425, 9715, 10400, 10720, 11600, 12064, 13400, 13936, 15080, 15544, 17420, 18850, 19430, 21775, 23200, 25259, 26800, 27872, 30160, 31088, 34840, 37700, 38860, 43550, 48575, 50518, 53600, 60320, 62176, 69680, 75400, 77720, 87100, 97150, 101036, 126295, 139360, 150800, 155440, 174200, 194300, 202072, 252590, 301600, 310880, 348400, 388600, 404144, 505180, 631475, 696800, 777200, 808288, 1010360, 1262950, 1554400, 2020720, 2525900, 4041440, 5051800, 10103600, 20207200]

約数ペア:

[(1, 20207200), (2, 10103600), (4, 5051800), (5, 4041440), (8, 2525900), (10, 2020720), (13, 1554400), (16, 1262950), (20, 1010360), (25, 808288), (26, 777200), (29, 696800), (32, 631475), (40, 505180), (50, 404144), (52, 388600), (58, 348400), (65, 310880), (67, 301600), (80, 252590), (100, 202072), (104, 194300), (116, 174200), (130, 155440), (134, 150800), (145, 139360), (160, 126295), (200, 101036), (208, 97150), (232, 87100), (260, 77720), (268, 75400), (290, 69680), (325, 62176), (335, 60320), (377, 53600), (400, 50518), (416, 48575), (464, 43550), (520, 38860), (536, 37700), (580, 34840), (650, 31088), (670, 30160), (725, 27872), (754, 26800), (800, 25259), (871, 23200), (928, 21775), (1040, 19430), (1072, 18850), (1160, 17420), (1300, 15544), (1340, 15080), (1450, 13936), (1508, 13400), (1675, 12064), (1742, 11600), (1885, 10720), (1943, 10400), (2080, 9715), (2144, 9425), (2320, 8710), (2600, 7772), (2680, 7540), (2900, 6968), (3016, 6700), (3350, 6032), (3484, 5800), (3770, 5360), (3886, 5200), (4355, 4640)]