20972160

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1$

素因数の和:367

約数の個数: 192

約数和(自身を含む): 79241760

約数和(自身を除く): 58269600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 128, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 264, 288, 320, 330, 331, 352, 360, 384, 396, 440, 480, 495, 528, 576, 640, 660, 662, 704, 720, 792, 880, 960, 990, 993, 1056, 1152, 1320, 1324, 1408, 1440, 1584, 1655, 1760, 1920, 1980, 1986, 2112, 2640, 2648, 2880, 2979, 3168, 3310, 3520, 3641, 3960, 3972, 4224, 4965, 5280, 5296, 5760, 5958, 6336, 6620, 7040, 7282, 7920, 7944, 9930, 10560, 10592, 10923, 11916, 12672, 13240, 14564, 14895, 15840, 15888, 18205, 19860, 21120, 21184, 21846, 23832, 26480, 29128, 29790, 31680, 31776, 32769, 36410, 39720, 42368, 43692, 47664, 52960, 54615, 58256, 59580, 63360, 63552, 65538, 72820, 79440, 87384, 95328, 105920, 109230, 116512, 119160, 127104, 131076, 145640, 158880, 163845, 174768, 190656, 211840, 218460, 233024, 238320, 262152, 291280, 317760, 327690, 349536, 381312, 436920, 466048, 476640, 524304, 582560, 635520, 655380, 699072, 873840, 953280, 1048608, 1165120, 1310760, 1398144, 1747680, 1906560, 2097216, 2330240, 2621520, 3495360, 4194432, 5243040, 6990720, 10486080, 20972160]

約数ペア:

[(1, 20972160), (2, 10486080), (3, 6990720), (4, 5243040), (5, 4194432), (6, 3495360), (8, 2621520), (9, 2330240), (10, 2097216), (11, 1906560), (12, 1747680), (15, 1398144), (16, 1310760), (18, 1165120), (20, 1048608), (22, 953280), (24, 873840), (30, 699072), (32, 655380), (33, 635520), (36, 582560), (40, 524304), (44, 476640), (45, 466048), (48, 436920), (55, 381312), (60, 349536), (64, 327690), (66, 317760), (72, 291280), (80, 262152), (88, 238320), (90, 233024), (96, 218460), (99, 211840), (110, 190656), (120, 174768), (128, 163845), (132, 158880), (144, 145640), (160, 131076), (165, 127104), (176, 119160), (180, 116512), (192, 109230), (198, 105920), (220, 95328), (240, 87384), (264, 79440), (288, 72820), (320, 65538), (330, 63552), (331, 63360), (352, 59580), (360, 58256), (384, 54615), (396, 52960), (440, 47664), (480, 43692), (495, 42368), (528, 39720), (576, 36410), (640, 32769), (660, 31776), (662, 31680), (704, 29790), (720, 29128), (792, 26480), (880, 23832), (960, 21846), (990, 21184), (993, 21120), (1056, 19860), (1152, 18205), (1320, 15888), (1324, 15840), (1408, 14895), (1440, 14564), (1584, 13240), (1655, 12672), (1760, 11916), (1920, 10923), (1980, 10592), (1986, 10560), (2112, 9930), (2640, 7944), (2648, 7920), (2880, 7282), (2979, 7040), (3168, 6620), (3310, 6336), (3520, 5958), (3641, 5760), (3960, 5296), (3972, 5280), (4224, 4965)]