209726440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{457}}^1$

素因数の和:635

約数の個数: 128

約数和(自身を含む): 593568000

約数和(自身を除く): 383841560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 149, 154, 220, 280, 298, 308, 385, 440, 457, 596, 616, 745, 770, 914, 1043, 1192, 1490, 1540, 1639, 1828, 2086, 2285, 2980, 3080, 3199, 3278, 3656, 4172, 4570, 5027, 5215, 5960, 6398, 6556, 8195, 8344, 9140, 10054, 10430, 11473, 12796, 13112, 15995, 16390, 18280, 20108, 20860, 22946, 25135, 25592, 31990, 32780, 35189, 40216, 41720, 45892, 50270, 57365, 63980, 65560, 68093, 70378, 91784, 100540, 114730, 127960, 136186, 140756, 175945, 201080, 229460, 272372, 281512, 340465, 351890, 458920, 476651, 544744, 680930, 703780, 749023, 953302, 1361860, 1407560, 1498046, 1906604, 2383255, 2723720, 2996092, 3745115, 3813208, 4766510, 5243161, 5992184, 7490230, 9533020, 10486322, 14980460, 19066040, 20972644, 26215805, 29960920, 41945288, 52431610, 104863220, 209726440]

約数ペア:

[(1, 209726440), (2, 104863220), (4, 52431610), (5, 41945288), (7, 29960920), (8, 26215805), (10, 20972644), (11, 19066040), (14, 14980460), (20, 10486322), (22, 9533020), (28, 7490230), (35, 5992184), (40, 5243161), (44, 4766510), (55, 3813208), (56, 3745115), (70, 2996092), (77, 2723720), (88, 2383255), (110, 1906604), (140, 1498046), (149, 1407560), (154, 1361860), (220, 953302), (280, 749023), (298, 703780), (308, 680930), (385, 544744), (440, 476651), (457, 458920), (596, 351890), (616, 340465), (745, 281512), (770, 272372), (914, 229460), (1043, 201080), (1192, 175945), (1490, 140756), (1540, 136186), (1639, 127960), (1828, 114730), (2086, 100540), (2285, 91784), (2980, 70378), (3080, 68093), (3199, 65560), (3278, 63980), (3656, 57365), (4172, 50270), (4570, 45892), (5027, 41720), (5215, 40216), (5960, 35189), (6398, 32780), (6556, 31990), (8195, 25592), (8344, 25135), (9140, 22946), (10054, 20860), (10430, 20108), (11473, 18280), (12796, 16390), (13112, 15995)]