642463920

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{42491}}^1$

素因数の和:42520

約数の個数: 160

約数和(自身を含む): 2529123840

約数和(自身を除く): 1886659920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 42491, 84982, 127473, 169964, 212455, 254946, 297437, 339928, 382419, 424910, 509892, 594874, 637365, 679856, 764838, 849820, 892311, 1019784, 1147257, 1189748, 1274730, 1487185, 1529676, 1699640, 1784622, 1912095, 2039568, 2294514, 2379496, 2549460, 2676933, 2974370, 3059352, 3399280, 3569244, 3824190, 4461555, 4589028, 4758992, 5098920, 5353866, 5736285, 5948740, 6118704, 7138488, 7648380, 8030799, 8923110, 9178056, 10197840, 10707732, 11472570, 11897480, 13384665, 14276976, 15296760, 16061598, 17846220, 18356112, 21415464, 22945140, 23794960, 26769330, 30593520, 32123196, 35692440, 40153995, 42830928, 45890280, 53538660, 64246392, 71384880, 80307990, 91780560, 107077320, 128492784, 160615980, 214154640, 321231960, 642463920]

約数ペア:

[(1, 642463920), (2, 321231960), (3, 214154640), (4, 160615980), (5, 128492784), (6, 107077320), (7, 91780560), (8, 80307990), (9, 71384880), (10, 64246392), (12, 53538660), (14, 45890280), (15, 42830928), (16, 40153995), (18, 35692440), (20, 32123196), (21, 30593520), (24, 26769330), (27, 23794960), (28, 22945140), (30, 21415464), (35, 18356112), (36, 17846220), (40, 16061598), (42, 15296760), (45, 14276976), (48, 13384665), (54, 11897480), (56, 11472570), (60, 10707732), (63, 10197840), (70, 9178056), (72, 8923110), (80, 8030799), (84, 7648380), (90, 7138488), (105, 6118704), (108, 5948740), (112, 5736285), (120, 5353866), (126, 5098920), (135, 4758992), (140, 4589028), (144, 4461555), (168, 3824190), (180, 3569244), (189, 3399280), (210, 3059352), (216, 2974370), (240, 2676933), (252, 2549460), (270, 2379496), (280, 2294514), (315, 2039568), (336, 1912095), (360, 1784622), (378, 1699640), (420, 1529676), (432, 1487185), (504, 1274730), (540, 1189748), (560, 1147257), (630, 1019784), (720, 892311), (756, 849820), (840, 764838), (945, 679856), (1008, 637365), (1080, 594874), (1260, 509892), (1512, 424910), (1680, 382419), (1890, 339928), (2160, 297437), (2520, 254946), (3024, 212455), (3780, 169964), (5040, 127473), (7560, 84982), (15120, 42491)]