21521182080

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{8819}}^1$

素因数の和:8913

約数の個数: 256

約数和(自身を含む): 72546969600

約数和(自身を除く): 51025787520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 41, 48, 60, 62, 64, 80, 82, 93, 96, 120, 123, 124, 128, 155, 160, 164, 186, 192, 205, 240, 246, 248, 310, 320, 328, 372, 384, 410, 465, 480, 492, 496, 615, 620, 640, 656, 744, 820, 930, 960, 984, 992, 1230, 1240, 1271, 1312, 1488, 1640, 1860, 1920, 1968, 1984, 2460, 2480, 2542, 2624, 2976, 3280, 3720, 3813, 3936, 3968, 4920, 4960, 5084, 5248, 5952, 6355, 6560, 7440, 7626, 7872, 8819, 9840, 9920, 10168, 11904, 12710, 13120, 14880, 15252, 15744, 17638, 19065, 19680, 19840, 20336, 25420, 26240, 26457, 29760, 30504, 35276, 38130, 39360, 40672, 44095, 50840, 52914, 59520, 61008, 70552, 76260, 78720, 81344, 88190, 101680, 105828, 122016, 132285, 141104, 152520, 162688, 176380, 203360, 211656, 244032, 264570, 273389, 282208, 305040, 352760, 361579, 406720, 423312, 488064, 529140, 546778, 564416, 610080, 705520, 723158, 813440, 820167, 846624, 1058280, 1084737, 1093556, 1128832, 1220160, 1366945, 1411040, 1446316, 1640334, 1693248, 1807895, 2116560, 2169474, 2187112, 2440320, 2733890, 2822080, 2892632, 3280668, 3386496, 3615790, 4100835, 4233120, 4338948, 4374224, 5423685, 5467780, 5644160, 5785264, 6561336, 7231580, 8201670, 8466240, 8677896, 8748448, 10847370, 10935560, 11208949, 11570528, 13122672, 14463160, 16403340, 16932480, 17355792, 17496896, 21694740, 21871120, 22417898, 23141056, 26245344, 28926320, 32806680, 33626847, 34711584, 34993792, 43389480, 43742240, 44835796, 46282112, 52490688, 56044745, 57852640, 65613360, 67253694, 69423168, 86778960, 87484480, 89671592, 104981376, 112089490, 115705280, 131226720, 134507388, 138846336, 168134235, 173557920, 174968960, 179343184, 224178980, 231410560, 262453440, 269014776, 336268470, 347115840, 358686368, 448357960, 524906880, 538029552, 672536940, 694231680, 717372736, 896715920, 1076059104, 1345073880, 1434745472, 1793431840, 2152118208, 2690147760, 3586863680, 4304236416, 5380295520, 7173727360, 10760591040, 21521182080]

約数ペア:

[(1, 21521182080), (2, 10760591040), (3, 7173727360), (4, 5380295520), (5, 4304236416), (6, 3586863680), (8, 2690147760), (10, 2152118208), (12, 1793431840), (15, 1434745472), (16, 1345073880), (20, 1076059104), (24, 896715920), (30, 717372736), (31, 694231680), (32, 672536940), (40, 538029552), (41, 524906880), (48, 448357960), (60, 358686368), (62, 347115840), (64, 336268470), (80, 269014776), (82, 262453440), (93, 231410560), (96, 224178980), (120, 179343184), (123, 174968960), (124, 173557920), (128, 168134235), (155, 138846336), (160, 134507388), (164, 131226720), (186, 115705280), (192, 112089490), (205, 104981376), (240, 89671592), (246, 87484480), (248, 86778960), (310, 69423168), (320, 67253694), (328, 65613360), (372, 57852640), (384, 56044745), (410, 52490688), (465, 46282112), (480, 44835796), (492, 43742240), (496, 43389480), (615, 34993792), (620, 34711584), (640, 33626847), (656, 32806680), (744, 28926320), (820, 26245344), (930, 23141056), (960, 22417898), (984, 21871120), (992, 21694740), (1230, 17496896), (1240, 17355792), (1271, 16932480), (1312, 16403340), (1488, 14463160), (1640, 13122672), (1860, 11570528), (1920, 11208949), (1968, 10935560), (1984, 10847370), (2460, 8748448), (2480, 8677896), (2542, 8466240), (2624, 8201670), (2976, 7231580), (3280, 6561336), (3720, 5785264), (3813, 5644160), (3936, 5467780), (3968, 5423685), (4920, 4374224), (4960, 4338948), (5084, 4233120), (5248, 4100835), (5952, 3615790), (6355, 3386496), (6560, 3280668), (7440, 2892632), (7626, 2822080), (7872, 2733890), (8819, 2440320), (9840, 2187112), (9920, 2169474), (10168, 2116560), (11904, 1807895), (12710, 1693248), (13120, 1640334), (14880, 1446316), (15252, 1411040), (15744, 1366945), (17638, 1220160), (19065, 1128832), (19680, 1093556), (19840, 1084737), (20336, 1058280), (25420, 846624), (26240, 820167), (26457, 813440), (29760, 723158), (30504, 705520), (35276, 610080), (38130, 564416), (39360, 546778), (40672, 529140), (44095, 488064), (50840, 423312), (52914, 406720), (59520, 361579), (61008, 352760), (70552, 305040), (76260, 282208), (78720, 273389), (81344, 264570), (88190, 244032), (101680, 211656), (105828, 203360), (122016, 176380), (132285, 162688), (141104, 152520)]