21185760

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:161

約数の個数: 192

約数和(自身を含む): 74027520

約数和(自身を除く): 52841760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 23, 24, 30, 32, 38, 40, 46, 48, 57, 60, 69, 76, 80, 92, 95, 96, 101, 114, 115, 120, 138, 152, 160, 184, 190, 202, 228, 230, 240, 276, 285, 303, 304, 345, 368, 380, 404, 437, 456, 460, 480, 505, 552, 570, 606, 608, 690, 736, 760, 808, 874, 912, 920, 1010, 1104, 1140, 1212, 1311, 1380, 1515, 1520, 1616, 1748, 1824, 1840, 1919, 2020, 2185, 2208, 2280, 2323, 2424, 2622, 2760, 3030, 3040, 3232, 3496, 3680, 3838, 4040, 4370, 4560, 4646, 4848, 5244, 5520, 5757, 6060, 6555, 6969, 6992, 7676, 8080, 8740, 9120, 9292, 9595, 9696, 10488, 11040, 11514, 11615, 12120, 13110, 13938, 13984, 15352, 16160, 17480, 18584, 19190, 20976, 23028, 23230, 24240, 26220, 27876, 28785, 30704, 34845, 34960, 37168, 38380, 41952, 44137, 46056, 46460, 48480, 52440, 55752, 57570, 61408, 69690, 69920, 74336, 76760, 88274, 92112, 92920, 104880, 111504, 115140, 132411, 139380, 153520, 176548, 184224, 185840, 209760, 220685, 223008, 230280, 264822, 278760, 307040, 353096, 371680, 441370, 460560, 529644, 557520, 662055, 706192, 882740, 921120, 1059288, 1115040, 1324110, 1412384, 1765480, 2118576, 2648220, 3530960, 4237152, 5296440, 7061920, 10592880, 21185760]

約数ペア:

[(1, 21185760), (2, 10592880), (3, 7061920), (4, 5296440), (5, 4237152), (6, 3530960), (8, 2648220), (10, 2118576), (12, 1765480), (15, 1412384), (16, 1324110), (19, 1115040), (20, 1059288), (23, 921120), (24, 882740), (30, 706192), (32, 662055), (38, 557520), (40, 529644), (46, 460560), (48, 441370), (57, 371680), (60, 353096), (69, 307040), (76, 278760), (80, 264822), (92, 230280), (95, 223008), (96, 220685), (101, 209760), (114, 185840), (115, 184224), (120, 176548), (138, 153520), (152, 139380), (160, 132411), (184, 115140), (190, 111504), (202, 104880), (228, 92920), (230, 92112), (240, 88274), (276, 76760), (285, 74336), (303, 69920), (304, 69690), (345, 61408), (368, 57570), (380, 55752), (404, 52440), (437, 48480), (456, 46460), (460, 46056), (480, 44137), (505, 41952), (552, 38380), (570, 37168), (606, 34960), (608, 34845), (690, 30704), (736, 28785), (760, 27876), (808, 26220), (874, 24240), (912, 23230), (920, 23028), (1010, 20976), (1104, 19190), (1140, 18584), (1212, 17480), (1311, 16160), (1380, 15352), (1515, 13984), (1520, 13938), (1616, 13110), (1748, 12120), (1824, 11615), (1840, 11514), (1919, 11040), (2020, 10488), (2185, 9696), (2208, 9595), (2280, 9292), (2323, 9120), (2424, 8740), (2622, 8080), (2760, 7676), (3030, 6992), (3040, 6969), (3232, 6555), (3496, 6060), (3680, 5757), (3838, 5520), (4040, 5244), (4370, 4848), (4560, 4646)]