128743440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:609

約数の個数: 160

約数和(自身を含む): 459613440

約数和(自身を除く): 330870000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 197, 210, 240, 280, 336, 389, 394, 420, 560, 591, 778, 788, 840, 985, 1167, 1182, 1379, 1556, 1576, 1680, 1945, 1970, 2334, 2364, 2723, 2758, 2955, 3112, 3152, 3890, 3940, 4137, 4668, 4728, 5446, 5516, 5835, 5910, 6224, 6895, 7780, 7880, 8169, 8274, 9336, 9456, 10892, 11032, 11670, 11820, 13615, 13790, 15560, 15760, 16338, 16548, 18672, 20685, 21784, 22064, 23340, 23640, 27230, 27580, 31120, 32676, 33096, 40845, 41370, 43568, 46680, 47280, 54460, 55160, 65352, 66192, 76633, 81690, 82740, 93360, 108920, 110320, 130704, 153266, 163380, 165480, 217840, 229899, 306532, 326760, 330960, 383165, 459798, 536431, 613064, 653520, 766330, 919596, 1072862, 1149495, 1226128, 1532660, 1609293, 1839192, 2145724, 2298990, 2682155, 3065320, 3218586, 3678384, 4291448, 4597980, 5364310, 6130640, 6437172, 8046465, 8582896, 9195960, 10728620, 12874344, 16092930, 18391920, 21457240, 25748688, 32185860, 42914480, 64371720, 128743440]

約数ペア:

[(1, 128743440), (2, 64371720), (3, 42914480), (4, 32185860), (5, 25748688), (6, 21457240), (7, 18391920), (8, 16092930), (10, 12874344), (12, 10728620), (14, 9195960), (15, 8582896), (16, 8046465), (20, 6437172), (21, 6130640), (24, 5364310), (28, 4597980), (30, 4291448), (35, 3678384), (40, 3218586), (42, 3065320), (48, 2682155), (56, 2298990), (60, 2145724), (70, 1839192), (80, 1609293), (84, 1532660), (105, 1226128), (112, 1149495), (120, 1072862), (140, 919596), (168, 766330), (197, 653520), (210, 613064), (240, 536431), (280, 459798), (336, 383165), (389, 330960), (394, 326760), (420, 306532), (560, 229899), (591, 217840), (778, 165480), (788, 163380), (840, 153266), (985, 130704), (1167, 110320), (1182, 108920), (1379, 93360), (1556, 82740), (1576, 81690), (1680, 76633), (1945, 66192), (1970, 65352), (2334, 55160), (2364, 54460), (2723, 47280), (2758, 46680), (2955, 43568), (3112, 41370), (3152, 40845), (3890, 33096), (3940, 32676), (4137, 31120), (4668, 27580), (4728, 27230), (5446, 23640), (5516, 23340), (5835, 22064), (5910, 21784), (6224, 20685), (6895, 18672), (7780, 16548), (7880, 16338), (8169, 15760), (8274, 15560), (9336, 13790), (9456, 13615), (10892, 11820), (11032, 11670)]