1280330800

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{65323}}^1$

素因数の和:65355

約数の個数: 90

約数和(自身を含む): 3578252748

約数和(自身を除く): 2297921948

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1960, 2450, 2800, 3920, 4900, 9800, 19600, 65323, 130646, 261292, 326615, 457261, 522584, 653230, 914522, 1045168, 1306460, 1633075, 1829044, 2286305, 2612920, 3200827, 3266150, 3658088, 4572610, 5225840, 6401654, 6532300, 7316176, 9145220, 11431525, 12803308, 13064600, 16004135, 18290440, 22863050, 25606616, 26129200, 32008270, 36580880, 45726100, 51213232, 64016540, 80020675, 91452200, 128033080, 160041350, 182904400, 256066160, 320082700, 640165400, 1280330800]

約数ペア:

[(1, 1280330800), (2, 640165400), (4, 320082700), (5, 256066160), (7, 182904400), (8, 160041350), (10, 128033080), (14, 91452200), (16, 80020675), (20, 64016540), (25, 51213232), (28, 45726100), (35, 36580880), (40, 32008270), (49, 26129200), (50, 25606616), (56, 22863050), (70, 18290440), (80, 16004135), (98, 13064600), (100, 12803308), (112, 11431525), (140, 9145220), (175, 7316176), (196, 6532300), (200, 6401654), (245, 5225840), (280, 4572610), (350, 3658088), (392, 3266150), (400, 3200827), (490, 2612920), (560, 2286305), (700, 1829044), (784, 1633075), (980, 1306460), (1225, 1045168), (1400, 914522), (1960, 653230), (2450, 522584), (2800, 457261), (3920, 326615), (4900, 261292), (9800, 130646), (19600, 65323)]