287907900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2917}}^1$

素因数の和:2988

約数の個数: 144

約数和(自身を含む): 972604416

約数和(自身を除く): 684696516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 47, 50, 60, 70, 75, 84, 94, 100, 105, 140, 141, 150, 175, 188, 210, 235, 282, 300, 329, 350, 420, 470, 525, 564, 658, 700, 705, 940, 987, 1050, 1175, 1316, 1410, 1645, 1974, 2100, 2350, 2820, 2917, 3290, 3525, 3948, 4700, 4935, 5834, 6580, 7050, 8225, 8751, 9870, 11668, 14100, 14585, 16450, 17502, 19740, 20419, 24675, 29170, 32900, 35004, 40838, 43755, 49350, 58340, 61257, 72925, 81676, 87510, 98700, 102095, 122514, 137099, 145850, 175020, 204190, 218775, 245028, 274198, 291700, 306285, 408380, 411297, 437550, 510475, 548396, 612570, 685495, 822594, 875100, 959693, 1020950, 1225140, 1370990, 1531425, 1645188, 1919386, 2041900, 2056485, 2741980, 2879079, 3062850, 3427475, 3838772, 4112970, 4798465, 5758158, 6125700, 6854950, 8225940, 9596930, 10282425, 11516316, 13709900, 14395395, 19193860, 20564850, 23992325, 28790790, 41129700, 47984650, 57581580, 71976975, 95969300, 143953950, 287907900]

約数ペア:

[(1, 287907900), (2, 143953950), (3, 95969300), (4, 71976975), (5, 57581580), (6, 47984650), (7, 41129700), (10, 28790790), (12, 23992325), (14, 20564850), (15, 19193860), (20, 14395395), (21, 13709900), (25, 11516316), (28, 10282425), (30, 9596930), (35, 8225940), (42, 6854950), (47, 6125700), (50, 5758158), (60, 4798465), (70, 4112970), (75, 3838772), (84, 3427475), (94, 3062850), (100, 2879079), (105, 2741980), (140, 2056485), (141, 2041900), (150, 1919386), (175, 1645188), (188, 1531425), (210, 1370990), (235, 1225140), (282, 1020950), (300, 959693), (329, 875100), (350, 822594), (420, 685495), (470, 612570), (525, 548396), (564, 510475), (658, 437550), (700, 411297), (705, 408380), (940, 306285), (987, 291700), (1050, 274198), (1175, 245028), (1316, 218775), (1410, 204190), (1645, 175020), (1974, 145850), (2100, 137099), (2350, 122514), (2820, 102095), (2917, 98700), (3290, 87510), (3525, 81676), (3948, 72925), (4700, 61257), (4935, 58340), (5834, 49350), (6580, 43755), (7050, 40838), (8225, 35004), (8751, 32900), (9870, 29170), (11668, 24675), (14100, 20419), (14585, 19740), (16450, 17502)]