648609840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2789}}^1$

素因数の和:2844

約数の個数: 240

約数和(自身を含む): 2428639200

約数和(自身を除く): 1780029360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 19, 20, 24, 30, 34, 36, 38, 40, 45, 48, 51, 57, 60, 68, 72, 76, 80, 85, 90, 95, 102, 114, 120, 136, 144, 152, 153, 170, 171, 180, 190, 204, 228, 240, 255, 272, 285, 304, 306, 323, 340, 342, 360, 380, 408, 456, 510, 570, 612, 646, 680, 684, 720, 760, 765, 816, 855, 912, 969, 1020, 1140, 1224, 1292, 1360, 1368, 1520, 1530, 1615, 1710, 1938, 2040, 2280, 2448, 2584, 2736, 2789, 2907, 3060, 3230, 3420, 3876, 4080, 4560, 4845, 5168, 5578, 5814, 6120, 6460, 6840, 7752, 8367, 9690, 11156, 11628, 12240, 12920, 13680, 13945, 14535, 15504, 16734, 19380, 22312, 23256, 25101, 25840, 27890, 29070, 33468, 38760, 41835, 44624, 46512, 47413, 50202, 52991, 55780, 58140, 66936, 77520, 83670, 94826, 100404, 105982, 111560, 116280, 125505, 133872, 142239, 158973, 167340, 189652, 200808, 211964, 223120, 232560, 237065, 251010, 264955, 284478, 317946, 334680, 379304, 401616, 423928, 426717, 474130, 476919, 502020, 529910, 568956, 635892, 669360, 711195, 758608, 794865, 847856, 853434, 900847, 948260, 953838, 1004040, 1059820, 1137912, 1271784, 1422390, 1589730, 1706868, 1801694, 1896520, 1907676, 2008080, 2119640, 2133585, 2275824, 2384595, 2543568, 2702541, 2844780, 3179460, 3413736, 3603388, 3793040, 3815352, 4239280, 4267170, 4504235, 4769190, 5405082, 5689560, 6358920, 6827472, 7206776, 7630704, 8107623, 8534340, 9008470, 9538380, 10810164, 11379120, 12717840, 13512705, 14413552, 16215246, 17068680, 18016940, 19076760, 21620328, 27025410, 32430492, 34137360, 36033880, 38153520, 40538115, 43240656, 54050820, 64860984, 72067760, 81076230, 108101640, 129721968, 162152460, 216203280, 324304920, 648609840]

約数ペア:

[(1, 648609840), (2, 324304920), (3, 216203280), (4, 162152460), (5, 129721968), (6, 108101640), (8, 81076230), (9, 72067760), (10, 64860984), (12, 54050820), (15, 43240656), (16, 40538115), (17, 38153520), (18, 36033880), (19, 34137360), (20, 32430492), (24, 27025410), (30, 21620328), (34, 19076760), (36, 18016940), (38, 17068680), (40, 16215246), (45, 14413552), (48, 13512705), (51, 12717840), (57, 11379120), (60, 10810164), (68, 9538380), (72, 9008470), (76, 8534340), (80, 8107623), (85, 7630704), (90, 7206776), (95, 6827472), (102, 6358920), (114, 5689560), (120, 5405082), (136, 4769190), (144, 4504235), (152, 4267170), (153, 4239280), (170, 3815352), (171, 3793040), (180, 3603388), (190, 3413736), (204, 3179460), (228, 2844780), (240, 2702541), (255, 2543568), (272, 2384595), (285, 2275824), (304, 2133585), (306, 2119640), (323, 2008080), (340, 1907676), (342, 1896520), (360, 1801694), (380, 1706868), (408, 1589730), (456, 1422390), (510, 1271784), (570, 1137912), (612, 1059820), (646, 1004040), (680, 953838), (684, 948260), (720, 900847), (760, 853434), (765, 847856), (816, 794865), (855, 758608), (912, 711195), (969, 669360), (1020, 635892), (1140, 568956), (1224, 529910), (1292, 502020), (1360, 476919), (1368, 474130), (1520, 426717), (1530, 423928), (1615, 401616), (1710, 379304), (1938, 334680), (2040, 317946), (2280, 284478), (2448, 264955), (2584, 251010), (2736, 237065), (2789, 232560), (2907, 223120), (3060, 211964), (3230, 200808), (3420, 189652), (3876, 167340), (4080, 158973), (4560, 142239), (4845, 133872), (5168, 125505), (5578, 116280), (5814, 111560), (6120, 105982), (6460, 100404), (6840, 94826), (7752, 83670), (8367, 77520), (9690, 66936), (11156, 58140), (11628, 55780), (12240, 52991), (12920, 50202), (13680, 47413), (13945, 46512), (14535, 44624), (15504, 41835), (16734, 38760), (19380, 33468), (22312, 29070), (23256, 27890), (25101, 25840)]