128378800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:371

約数の個数: 120

約数和(自身を含む): 340424640

約数和(自身を除く): 212045840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 163, 176, 179, 200, 220, 275, 326, 358, 400, 440, 550, 652, 716, 815, 880, 895, 1100, 1304, 1432, 1630, 1790, 1793, 1969, 2200, 2608, 2864, 3260, 3580, 3586, 3938, 4075, 4400, 4475, 6520, 7160, 7172, 7876, 8150, 8950, 8965, 9845, 13040, 14320, 14344, 15752, 16300, 17900, 17930, 19690, 28688, 29177, 31504, 32600, 35800, 35860, 39380, 44825, 49225, 58354, 65200, 71600, 71720, 78760, 89650, 98450, 116708, 143440, 145885, 157520, 179300, 196900, 233416, 291770, 320947, 358600, 393800, 466832, 583540, 641894, 717200, 729425, 787600, 1167080, 1283788, 1458850, 1604735, 2334160, 2567576, 2917700, 3209470, 5135152, 5835400, 6418940, 8023675, 11670800, 12837880, 16047350, 25675760, 32094700, 64189400, 128378800]

約数ペア:

[(1, 128378800), (2, 64189400), (4, 32094700), (5, 25675760), (8, 16047350), (10, 12837880), (11, 11670800), (16, 8023675), (20, 6418940), (22, 5835400), (25, 5135152), (40, 3209470), (44, 2917700), (50, 2567576), (55, 2334160), (80, 1604735), (88, 1458850), (100, 1283788), (110, 1167080), (163, 787600), (176, 729425), (179, 717200), (200, 641894), (220, 583540), (275, 466832), (326, 393800), (358, 358600), (400, 320947), (440, 291770), (550, 233416), (652, 196900), (716, 179300), (815, 157520), (880, 145885), (895, 143440), (1100, 116708), (1304, 98450), (1432, 89650), (1630, 78760), (1790, 71720), (1793, 71600), (1969, 65200), (2200, 58354), (2608, 49225), (2864, 44825), (3260, 39380), (3580, 35860), (3586, 35800), (3938, 32600), (4075, 31504), (4400, 29177), (4475, 28688), (6520, 19690), (7160, 17930), (7172, 17900), (7876, 16300), (8150, 15752), (8950, 14344), (8965, 14320), (9845, 13040)]