128528784

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{257}}^1$

素因数の和:445

約数の個数: 120

約数和(自身を含む): 379297152

約数和(自身を除く): 250768368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 46, 48, 69, 72, 92, 138, 144, 151, 184, 207, 257, 276, 302, 368, 414, 453, 514, 552, 604, 771, 828, 906, 1028, 1104, 1208, 1359, 1542, 1656, 1812, 2056, 2313, 2416, 2718, 3084, 3312, 3473, 3624, 4112, 4626, 5436, 5911, 6168, 6946, 7248, 9252, 10419, 10872, 11822, 12336, 13892, 17733, 18504, 20838, 21744, 23644, 27784, 31257, 35466, 37008, 38807, 41676, 47288, 53199, 55568, 62514, 70932, 77614, 83352, 94576, 106398, 116421, 125028, 141864, 155228, 166704, 212796, 232842, 250056, 283728, 310456, 349263, 425592, 465684, 500112, 620912, 698526, 851184, 892561, 931368, 1397052, 1785122, 1862736, 2677683, 2794104, 3570244, 5355366, 5588208, 7140488, 8033049, 10710732, 14280976, 16066098, 21421464, 32132196, 42842928, 64264392, 128528784]

約数ペア:

[(1, 128528784), (2, 64264392), (3, 42842928), (4, 32132196), (6, 21421464), (8, 16066098), (9, 14280976), (12, 10710732), (16, 8033049), (18, 7140488), (23, 5588208), (24, 5355366), (36, 3570244), (46, 2794104), (48, 2677683), (69, 1862736), (72, 1785122), (92, 1397052), (138, 931368), (144, 892561), (151, 851184), (184, 698526), (207, 620912), (257, 500112), (276, 465684), (302, 425592), (368, 349263), (414, 310456), (453, 283728), (514, 250056), (552, 232842), (604, 212796), (771, 166704), (828, 155228), (906, 141864), (1028, 125028), (1104, 116421), (1208, 106398), (1359, 94576), (1542, 83352), (1656, 77614), (1812, 70932), (2056, 62514), (2313, 55568), (2416, 53199), (2718, 47288), (3084, 41676), (3312, 38807), (3473, 37008), (3624, 35466), (4112, 31257), (4626, 27784), (5436, 23644), (5911, 21744), (6168, 20838), (6946, 18504), (7248, 17733), (9252, 13892), (10419, 12336), (10872, 11822)]