128016840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{593}}^1$

素因数の和:871

約数の個数: 128

約数和(自身を含む): 441365760

約数和(自身を除く): 313348920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 257, 280, 420, 514, 593, 771, 840, 1028, 1186, 1285, 1542, 1779, 1799, 2056, 2372, 2570, 2965, 3084, 3558, 3598, 3855, 4151, 4744, 5140, 5397, 5930, 6168, 7116, 7196, 7710, 8302, 8895, 8995, 10280, 10794, 11860, 12453, 14232, 14392, 15420, 16604, 17790, 17990, 20755, 21588, 23720, 24906, 26985, 30840, 33208, 35580, 35980, 41510, 43176, 49812, 53970, 62265, 71160, 71960, 83020, 99624, 107940, 124530, 152401, 166040, 215880, 249060, 304802, 457203, 498120, 609604, 762005, 914406, 1066807, 1219208, 1524010, 1828812, 2133614, 2286015, 3048020, 3200421, 3657624, 4267228, 4572030, 5334035, 6096040, 6400842, 8534456, 9144060, 10668070, 12801684, 16002105, 18288120, 21336140, 25603368, 32004210, 42672280, 64008420, 128016840]

約数ペア:

[(1, 128016840), (2, 64008420), (3, 42672280), (4, 32004210), (5, 25603368), (6, 21336140), (7, 18288120), (8, 16002105), (10, 12801684), (12, 10668070), (14, 9144060), (15, 8534456), (20, 6400842), (21, 6096040), (24, 5334035), (28, 4572030), (30, 4267228), (35, 3657624), (40, 3200421), (42, 3048020), (56, 2286015), (60, 2133614), (70, 1828812), (84, 1524010), (105, 1219208), (120, 1066807), (140, 914406), (168, 762005), (210, 609604), (257, 498120), (280, 457203), (420, 304802), (514, 249060), (593, 215880), (771, 166040), (840, 152401), (1028, 124530), (1186, 107940), (1285, 99624), (1542, 83020), (1779, 71960), (1799, 71160), (2056, 62265), (2372, 53970), (2570, 49812), (2965, 43176), (3084, 41510), (3558, 35980), (3598, 35580), (3855, 33208), (4151, 30840), (4744, 26985), (5140, 24906), (5397, 23720), (5930, 21588), (6168, 20755), (7116, 17990), (7196, 17790), (7710, 16604), (8302, 15420), (8895, 14392), (8995, 14232), (10280, 12453), (10794, 11860)]