21725280

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:178

約数の個数: 192

約数和(自身を含む): 78382080

約数和(自身を除く): 56656800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 47, 48, 54, 60, 72, 80, 90, 94, 96, 107, 108, 120, 135, 141, 144, 160, 180, 188, 214, 216, 235, 240, 270, 282, 288, 321, 360, 376, 423, 428, 432, 470, 480, 535, 540, 564, 642, 705, 720, 752, 846, 856, 864, 940, 963, 1070, 1080, 1128, 1269, 1284, 1410, 1440, 1504, 1605, 1692, 1712, 1880, 1926, 2115, 2140, 2160, 2256, 2538, 2568, 2820, 2889, 3210, 3384, 3424, 3760, 3852, 4230, 4280, 4320, 4512, 4815, 5029, 5076, 5136, 5640, 5778, 6345, 6420, 6768, 7520, 7704, 8460, 8560, 9630, 10058, 10152, 10272, 11280, 11556, 12690, 12840, 13536, 14445, 15087, 15408, 16920, 17120, 19260, 20116, 20304, 22560, 23112, 25145, 25380, 25680, 28890, 30174, 30816, 33840, 38520, 40232, 40608, 45261, 46224, 50290, 50760, 51360, 57780, 60348, 67680, 75435, 77040, 80464, 90522, 92448, 100580, 101520, 115560, 120696, 135783, 150870, 154080, 160928, 181044, 201160, 203040, 226305, 231120, 241392, 271566, 301740, 362088, 402320, 452610, 462240, 482784, 543132, 603480, 678915, 724176, 804640, 905220, 1086264, 1206960, 1357830, 1448352, 1810440, 2172528, 2413920, 2715660, 3620880, 4345056, 5431320, 7241760, 10862640, 21725280]

約数ペア:

[(1, 21725280), (2, 10862640), (3, 7241760), (4, 5431320), (5, 4345056), (6, 3620880), (8, 2715660), (9, 2413920), (10, 2172528), (12, 1810440), (15, 1448352), (16, 1357830), (18, 1206960), (20, 1086264), (24, 905220), (27, 804640), (30, 724176), (32, 678915), (36, 603480), (40, 543132), (45, 482784), (47, 462240), (48, 452610), (54, 402320), (60, 362088), (72, 301740), (80, 271566), (90, 241392), (94, 231120), (96, 226305), (107, 203040), (108, 201160), (120, 181044), (135, 160928), (141, 154080), (144, 150870), (160, 135783), (180, 120696), (188, 115560), (214, 101520), (216, 100580), (235, 92448), (240, 90522), (270, 80464), (282, 77040), (288, 75435), (321, 67680), (360, 60348), (376, 57780), (423, 51360), (428, 50760), (432, 50290), (470, 46224), (480, 45261), (535, 40608), (540, 40232), (564, 38520), (642, 33840), (705, 30816), (720, 30174), (752, 28890), (846, 25680), (856, 25380), (864, 25145), (940, 23112), (963, 22560), (1070, 20304), (1080, 20116), (1128, 19260), (1269, 17120), (1284, 16920), (1410, 15408), (1440, 15087), (1504, 14445), (1605, 13536), (1692, 12840), (1712, 12690), (1880, 11556), (1926, 11280), (2115, 10272), (2140, 10152), (2160, 10058), (2256, 9630), (2538, 8560), (2568, 8460), (2820, 7704), (2889, 7520), (3210, 6768), (3384, 6420), (3424, 6345), (3760, 5778), (3852, 5640), (4230, 5136), (4280, 5076), (4320, 5029), (4512, 4815)]