209979840

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{31247}}^1$

素因数の和:31274

約数の個数: 112

約数和(自身を含む): 761951232

約数和(自身を除く): 551971392

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3360, 6720, 31247, 62494, 93741, 124988, 156235, 187482, 218729, 249976, 312470, 374964, 437458, 468705, 499952, 624940, 656187, 749928, 874916, 937410, 999904, 1093645, 1249880, 1312374, 1499856, 1749832, 1874820, 1999808, 2187290, 2499760, 2624748, 2999712, 3280935, 3499664, 3749640, 4374580, 4999520, 5249496, 5999424, 6561870, 6999328, 7499280, 8749160, 9999040, 10498992, 13123740, 13998656, 14998560, 17498320, 20997984, 26247480, 29997120, 34996640, 41995968, 52494960, 69993280, 104989920, 209979840]

約数ペア:

[(1, 209979840), (2, 104989920), (3, 69993280), (4, 52494960), (5, 41995968), (6, 34996640), (7, 29997120), (8, 26247480), (10, 20997984), (12, 17498320), (14, 14998560), (15, 13998656), (16, 13123740), (20, 10498992), (21, 9999040), (24, 8749160), (28, 7499280), (30, 6999328), (32, 6561870), (35, 5999424), (40, 5249496), (42, 4999520), (48, 4374580), (56, 3749640), (60, 3499664), (64, 3280935), (70, 2999712), (80, 2624748), (84, 2499760), (96, 2187290), (105, 1999808), (112, 1874820), (120, 1749832), (140, 1499856), (160, 1312374), (168, 1249880), (192, 1093645), (210, 999904), (224, 937410), (240, 874916), (280, 749928), (320, 656187), (336, 624940), (420, 499952), (448, 468705), (480, 437458), (560, 374964), (672, 312470), (840, 249976), (960, 218729), (1120, 187482), (1344, 156235), (1680, 124988), (2240, 93741), (3360, 62494), (6720, 31247)]