31778640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:162

約数の個数: 240

約数和(自身を含む): 118385280

約数和(自身を除く): 86606640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 23, 24, 30, 36, 38, 40, 45, 46, 48, 57, 60, 69, 72, 76, 80, 90, 92, 95, 101, 114, 115, 120, 138, 144, 152, 171, 180, 184, 190, 202, 207, 228, 230, 240, 276, 285, 303, 304, 342, 345, 360, 368, 380, 404, 414, 437, 456, 460, 505, 552, 570, 606, 684, 690, 720, 760, 808, 828, 855, 874, 909, 912, 920, 1010, 1035, 1104, 1140, 1212, 1311, 1368, 1380, 1515, 1520, 1616, 1656, 1710, 1748, 1818, 1840, 1919, 2020, 2070, 2185, 2280, 2323, 2424, 2622, 2736, 2760, 3030, 3312, 3420, 3496, 3636, 3838, 3933, 4040, 4140, 4370, 4545, 4560, 4646, 4848, 5244, 5520, 5757, 6060, 6555, 6840, 6969, 6992, 7272, 7676, 7866, 8080, 8280, 8740, 9090, 9292, 9595, 10488, 11514, 11615, 12120, 13110, 13680, 13938, 14544, 15352, 15732, 16560, 17271, 17480, 18180, 18584, 19190, 19665, 20907, 20976, 23028, 23230, 24240, 26220, 27876, 28785, 30704, 31464, 34542, 34845, 34960, 36360, 37168, 38380, 39330, 41814, 44137, 46056, 46460, 52440, 55752, 57570, 62928, 69084, 69690, 72720, 76760, 78660, 83628, 86355, 88274, 92112, 92920, 104535, 104880, 111504, 115140, 132411, 138168, 139380, 153520, 157320, 167256, 172710, 176548, 185840, 209070, 220685, 230280, 264822, 276336, 278760, 314640, 334512, 345420, 353096, 397233, 418140, 441370, 460560, 529644, 557520, 662055, 690840, 706192, 794466, 836280, 882740, 1059288, 1324110, 1381680, 1588932, 1672560, 1765480, 1986165, 2118576, 2648220, 3177864, 3530960, 3972330, 5296440, 6355728, 7944660, 10592880, 15889320, 31778640]

約数ペア:

[(1, 31778640), (2, 15889320), (3, 10592880), (4, 7944660), (5, 6355728), (6, 5296440), (8, 3972330), (9, 3530960), (10, 3177864), (12, 2648220), (15, 2118576), (16, 1986165), (18, 1765480), (19, 1672560), (20, 1588932), (23, 1381680), (24, 1324110), (30, 1059288), (36, 882740), (38, 836280), (40, 794466), (45, 706192), (46, 690840), (48, 662055), (57, 557520), (60, 529644), (69, 460560), (72, 441370), (76, 418140), (80, 397233), (90, 353096), (92, 345420), (95, 334512), (101, 314640), (114, 278760), (115, 276336), (120, 264822), (138, 230280), (144, 220685), (152, 209070), (171, 185840), (180, 176548), (184, 172710), (190, 167256), (202, 157320), (207, 153520), (228, 139380), (230, 138168), (240, 132411), (276, 115140), (285, 111504), (303, 104880), (304, 104535), (342, 92920), (345, 92112), (360, 88274), (368, 86355), (380, 83628), (404, 78660), (414, 76760), (437, 72720), (456, 69690), (460, 69084), (505, 62928), (552, 57570), (570, 55752), (606, 52440), (684, 46460), (690, 46056), (720, 44137), (760, 41814), (808, 39330), (828, 38380), (855, 37168), (874, 36360), (909, 34960), (912, 34845), (920, 34542), (1010, 31464), (1035, 30704), (1104, 28785), (1140, 27876), (1212, 26220), (1311, 24240), (1368, 23230), (1380, 23028), (1515, 20976), (1520, 20907), (1616, 19665), (1656, 19190), (1710, 18584), (1748, 18180), (1818, 17480), (1840, 17271), (1919, 16560), (2020, 15732), (2070, 15352), (2185, 14544), (2280, 13938), (2323, 13680), (2424, 13110), (2622, 12120), (2736, 11615), (2760, 11514), (3030, 10488), (3312, 9595), (3420, 9292), (3496, 9090), (3636, 8740), (3838, 8280), (3933, 8080), (4040, 7866), (4140, 7676), (4370, 7272), (4545, 6992), (4560, 6969), (4646, 6840), (4848, 6555), (5244, 6060), (5520, 5757)]