81751600

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 180

約数和(自身を含む): 236198424

約数和(自身を除く): 154446824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 43, 49, 50, 56, 70, 80, 86, 97, 98, 100, 112, 140, 172, 175, 194, 196, 200, 215, 245, 280, 301, 344, 350, 388, 392, 400, 430, 485, 490, 560, 602, 679, 688, 700, 776, 784, 860, 970, 980, 1075, 1204, 1225, 1358, 1400, 1505, 1552, 1720, 1940, 1960, 2107, 2150, 2408, 2425, 2450, 2716, 2800, 3010, 3395, 3440, 3880, 3920, 4171, 4214, 4300, 4753, 4816, 4850, 4900, 5432, 6020, 6790, 7525, 7760, 8342, 8428, 8600, 9506, 9700, 9800, 10535, 10864, 12040, 13580, 15050, 16684, 16856, 16975, 17200, 19012, 19400, 19600, 20855, 21070, 23765, 24080, 27160, 29197, 30100, 33368, 33712, 33950, 38024, 38800, 41710, 42140, 47530, 52675, 54320, 58394, 60200, 66736, 67900, 76048, 83420, 84280, 95060, 104275, 105350, 116788, 118825, 120400, 135800, 145985, 166840, 168560, 190120, 204379, 208550, 210700, 233576, 237650, 271600, 291970, 333680, 380240, 408758, 417100, 421400, 467152, 475300, 583940, 729925, 817516, 834200, 842800, 950600, 1021895, 1167880, 1459850, 1635032, 1668400, 1901200, 2043790, 2335760, 2919700, 3270064, 4087580, 5109475, 5839400, 8175160, 10218950, 11678800, 16350320, 20437900, 40875800, 81751600]

約数ペア:

[(1, 81751600), (2, 40875800), (4, 20437900), (5, 16350320), (7, 11678800), (8, 10218950), (10, 8175160), (14, 5839400), (16, 5109475), (20, 4087580), (25, 3270064), (28, 2919700), (35, 2335760), (40, 2043790), (43, 1901200), (49, 1668400), (50, 1635032), (56, 1459850), (70, 1167880), (80, 1021895), (86, 950600), (97, 842800), (98, 834200), (100, 817516), (112, 729925), (140, 583940), (172, 475300), (175, 467152), (194, 421400), (196, 417100), (200, 408758), (215, 380240), (245, 333680), (280, 291970), (301, 271600), (344, 237650), (350, 233576), (388, 210700), (392, 208550), (400, 204379), (430, 190120), (485, 168560), (490, 166840), (560, 145985), (602, 135800), (679, 120400), (688, 118825), (700, 116788), (776, 105350), (784, 104275), (860, 95060), (970, 84280), (980, 83420), (1075, 76048), (1204, 67900), (1225, 66736), (1358, 60200), (1400, 58394), (1505, 54320), (1552, 52675), (1720, 47530), (1940, 42140), (1960, 41710), (2107, 38800), (2150, 38024), (2408, 33950), (2425, 33712), (2450, 33368), (2716, 30100), (2800, 29197), (3010, 27160), (3395, 24080), (3440, 23765), (3880, 21070), (3920, 20855), (4171, 19600), (4214, 19400), (4300, 19012), (4753, 17200), (4816, 16975), (4850, 16856), (4900, 16684), (5432, 15050), (6020, 13580), (6790, 12040), (7525, 10864), (7760, 10535), (8342, 9800), (8428, 9700), (8600, 9506)]