128140880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{337}}^1$

素因数の和:461

約数の個数: 120

約数和(自身を含む): 351180648

約数和(自身を除く): 223039768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 97, 98, 112, 140, 194, 196, 245, 280, 337, 388, 392, 485, 490, 560, 674, 679, 776, 784, 970, 980, 1348, 1358, 1552, 1685, 1940, 1960, 2359, 2696, 2716, 3370, 3395, 3880, 3920, 4718, 4753, 5392, 5432, 6740, 6790, 7760, 9436, 9506, 10864, 11795, 13480, 13580, 16513, 18872, 19012, 23590, 23765, 26960, 27160, 32689, 33026, 37744, 38024, 47180, 47530, 54320, 65378, 66052, 76048, 82565, 94360, 95060, 130756, 132104, 163445, 165130, 188720, 190120, 228823, 261512, 264208, 326890, 330260, 380240, 457646, 523024, 653780, 660520, 915292, 1144115, 1307560, 1321040, 1601761, 1830584, 2288230, 2615120, 3203522, 3661168, 4576460, 6407044, 8008805, 9152920, 12814088, 16017610, 18305840, 25628176, 32035220, 64070440, 128140880]

約数ペア:

[(1, 128140880), (2, 64070440), (4, 32035220), (5, 25628176), (7, 18305840), (8, 16017610), (10, 12814088), (14, 9152920), (16, 8008805), (20, 6407044), (28, 4576460), (35, 3661168), (40, 3203522), (49, 2615120), (56, 2288230), (70, 1830584), (80, 1601761), (97, 1321040), (98, 1307560), (112, 1144115), (140, 915292), (194, 660520), (196, 653780), (245, 523024), (280, 457646), (337, 380240), (388, 330260), (392, 326890), (485, 264208), (490, 261512), (560, 228823), (674, 190120), (679, 188720), (776, 165130), (784, 163445), (970, 132104), (980, 130756), (1348, 95060), (1358, 94360), (1552, 82565), (1685, 76048), (1940, 66052), (1960, 65378), (2359, 54320), (2696, 47530), (2716, 47180), (3370, 38024), (3395, 37744), (3880, 33026), (3920, 32689), (4718, 27160), (4753, 26960), (5392, 23765), (5432, 23590), (6740, 19012), (6790, 18872), (7760, 16513), (9436, 13580), (9506, 13480), (10864, 11795)]