21072480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:349

約数の個数: 192

約数和(自身を含む): 78236928

約数和(自身を除く): 57164448

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 20, 22, 24, 26, 30, 32, 33, 39, 40, 44, 48, 52, 55, 60, 65, 66, 78, 80, 88, 96, 104, 110, 120, 130, 132, 143, 156, 160, 165, 176, 195, 208, 220, 240, 260, 264, 286, 307, 312, 330, 352, 390, 416, 429, 440, 480, 520, 528, 572, 614, 624, 660, 715, 780, 858, 880, 921, 1040, 1056, 1144, 1228, 1248, 1320, 1430, 1535, 1560, 1716, 1760, 1842, 2080, 2145, 2288, 2456, 2640, 2860, 3070, 3120, 3377, 3432, 3684, 3991, 4290, 4576, 4605, 4912, 5280, 5720, 6140, 6240, 6754, 6864, 7368, 7982, 8580, 9210, 9824, 10131, 11440, 11973, 12280, 13508, 13728, 14736, 15964, 16885, 17160, 18420, 19955, 20262, 22880, 23946, 24560, 27016, 29472, 31928, 33770, 34320, 36840, 39910, 40524, 43901, 47892, 49120, 50655, 54032, 59865, 63856, 67540, 68640, 73680, 79820, 81048, 87802, 95784, 101310, 108064, 119730, 127712, 131703, 135080, 147360, 159640, 162096, 175604, 191568, 202620, 219505, 239460, 263406, 270160, 319280, 324192, 351208, 383136, 405240, 439010, 478920, 526812, 540320, 638560, 658515, 702416, 810480, 878020, 957840, 1053624, 1317030, 1404832, 1620960, 1756040, 1915680, 2107248, 2634060, 3512080, 4214496, 5268120, 7024160, 10536240, 21072480]

約数ペア:

[(1, 21072480), (2, 10536240), (3, 7024160), (4, 5268120), (5, 4214496), (6, 3512080), (8, 2634060), (10, 2107248), (11, 1915680), (12, 1756040), (13, 1620960), (15, 1404832), (16, 1317030), (20, 1053624), (22, 957840), (24, 878020), (26, 810480), (30, 702416), (32, 658515), (33, 638560), (39, 540320), (40, 526812), (44, 478920), (48, 439010), (52, 405240), (55, 383136), (60, 351208), (65, 324192), (66, 319280), (78, 270160), (80, 263406), (88, 239460), (96, 219505), (104, 202620), (110, 191568), (120, 175604), (130, 162096), (132, 159640), (143, 147360), (156, 135080), (160, 131703), (165, 127712), (176, 119730), (195, 108064), (208, 101310), (220, 95784), (240, 87802), (260, 81048), (264, 79820), (286, 73680), (307, 68640), (312, 67540), (330, 63856), (352, 59865), (390, 54032), (416, 50655), (429, 49120), (440, 47892), (480, 43901), (520, 40524), (528, 39910), (572, 36840), (614, 34320), (624, 33770), (660, 31928), (715, 29472), (780, 27016), (858, 24560), (880, 23946), (921, 22880), (1040, 20262), (1056, 19955), (1144, 18420), (1228, 17160), (1248, 16885), (1320, 15964), (1430, 14736), (1535, 13728), (1560, 13508), (1716, 12280), (1760, 11973), (1842, 11440), (2080, 10131), (2145, 9824), (2288, 9210), (2456, 8580), (2640, 7982), (2860, 7368), (3070, 6864), (3120, 6754), (3377, 6240), (3432, 6140), (3684, 5720), (3991, 5280), (4290, 4912), (4576, 4605)]