128671440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{541}}^1\times {\mathrm{991}}^1$

素因数の和:1548

約数の個数: 80

約数和(自身を含む): 400022016

約数和(自身を除く): 271350576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 541, 991, 1082, 1623, 1982, 2164, 2705, 2973, 3246, 3964, 4328, 4955, 5410, 5946, 6492, 7928, 8115, 8656, 9910, 10820, 11892, 12984, 14865, 15856, 16230, 19820, 21640, 23784, 25968, 29730, 32460, 39640, 43280, 47568, 59460, 64920, 79280, 118920, 129840, 237840, 536131, 1072262, 1608393, 2144524, 2680655, 3216786, 4289048, 5361310, 6433572, 8041965, 8578096, 10722620, 12867144, 16083930, 21445240, 25734288, 32167860, 42890480, 64335720, 128671440]

約数ペア:

[(1, 128671440), (2, 64335720), (3, 42890480), (4, 32167860), (5, 25734288), (6, 21445240), (8, 16083930), (10, 12867144), (12, 10722620), (15, 8578096), (16, 8041965), (20, 6433572), (24, 5361310), (30, 4289048), (40, 3216786), (48, 2680655), (60, 2144524), (80, 1608393), (120, 1072262), (240, 536131), (541, 237840), (991, 129840), (1082, 118920), (1623, 79280), (1982, 64920), (2164, 59460), (2705, 47568), (2973, 43280), (3246, 39640), (3964, 32460), (4328, 29730), (4955, 25968), (5410, 23784), (5946, 21640), (6492, 19820), (7928, 16230), (8115, 15856), (8656, 14865), (9910, 12984), (10820, 11892)]