20508800

素因数分解:

$2^7\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:83

約数の個数: 192

約数和(自身を含む): 59761800

約数和(自身を除く): 39253000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 25, 26, 29, 32, 34, 40, 50, 52, 58, 64, 65, 68, 80, 85, 100, 104, 116, 128, 130, 136, 145, 160, 170, 200, 208, 221, 232, 260, 272, 290, 320, 325, 340, 377, 400, 416, 425, 442, 464, 493, 520, 544, 580, 640, 650, 680, 725, 754, 800, 832, 850, 884, 928, 986, 1040, 1088, 1105, 1160, 1300, 1360, 1450, 1508, 1600, 1664, 1700, 1768, 1856, 1885, 1972, 2080, 2176, 2210, 2320, 2465, 2600, 2720, 2900, 3016, 3200, 3400, 3536, 3712, 3770, 3944, 4160, 4420, 4640, 4930, 5200, 5440, 5525, 5800, 6032, 6409, 6800, 7072, 7540, 7888, 8320, 8840, 9280, 9425, 9860, 10400, 10880, 11050, 11600, 12064, 12325, 12818, 13600, 14144, 15080, 15776, 17680, 18560, 18850, 19720, 20800, 22100, 23200, 24128, 24650, 25636, 27200, 28288, 30160, 31552, 32045, 35360, 37700, 39440, 41600, 44200, 46400, 48256, 49300, 51272, 54400, 60320, 63104, 64090, 70720, 75400, 78880, 88400, 92800, 98600, 102544, 120640, 128180, 141440, 150800, 157760, 160225, 176800, 197200, 205088, 241280, 256360, 301600, 315520, 320450, 353600, 394400, 410176, 512720, 603200, 640900, 707200, 788800, 820352, 1025440, 1206400, 1281800, 1577600, 2050880, 2563600, 4101760, 5127200, 10254400, 20508800]

約数ペア:

[(1, 20508800), (2, 10254400), (4, 5127200), (5, 4101760), (8, 2563600), (10, 2050880), (13, 1577600), (16, 1281800), (17, 1206400), (20, 1025440), (25, 820352), (26, 788800), (29, 707200), (32, 640900), (34, 603200), (40, 512720), (50, 410176), (52, 394400), (58, 353600), (64, 320450), (65, 315520), (68, 301600), (80, 256360), (85, 241280), (100, 205088), (104, 197200), (116, 176800), (128, 160225), (130, 157760), (136, 150800), (145, 141440), (160, 128180), (170, 120640), (200, 102544), (208, 98600), (221, 92800), (232, 88400), (260, 78880), (272, 75400), (290, 70720), (320, 64090), (325, 63104), (340, 60320), (377, 54400), (400, 51272), (416, 49300), (425, 48256), (442, 46400), (464, 44200), (493, 41600), (520, 39440), (544, 37700), (580, 35360), (640, 32045), (650, 31552), (680, 30160), (725, 28288), (754, 27200), (800, 25636), (832, 24650), (850, 24128), (884, 23200), (928, 22100), (986, 20800), (1040, 19720), (1088, 18850), (1105, 18560), (1160, 17680), (1300, 15776), (1360, 15080), (1450, 14144), (1508, 13600), (1600, 12818), (1664, 12325), (1700, 12064), (1768, 11600), (1856, 11050), (1885, 10880), (1972, 10400), (2080, 9860), (2176, 9425), (2210, 9280), (2320, 8840), (2465, 8320), (2600, 7888), (2720, 7540), (2900, 7072), (3016, 6800), (3200, 6409), (3400, 6032), (3536, 5800), (3712, 5525), (3770, 5440), (3944, 5200), (4160, 4930), (4420, 4640)]