128455808

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:302

約数の個数: 128

約数和(自身を含む): 308448000

約数和(自身を除く): 179992192

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 32, 34, 38, 52, 64, 68, 76, 104, 128, 136, 152, 208, 221, 239, 247, 272, 304, 323, 416, 442, 478, 494, 544, 608, 646, 832, 884, 956, 988, 1088, 1216, 1292, 1664, 1768, 1912, 1976, 2176, 2432, 2584, 3107, 3536, 3824, 3952, 4063, 4199, 4541, 5168, 6214, 7072, 7648, 7904, 8126, 8398, 9082, 10336, 12428, 14144, 15296, 15808, 16252, 16796, 18164, 20672, 24856, 28288, 30592, 31616, 32504, 33592, 36328, 41344, 49712, 52819, 59033, 65008, 67184, 72656, 77197, 99424, 105638, 118066, 130016, 134368, 145312, 154394, 198848, 211276, 236132, 260032, 268736, 290624, 308788, 397696, 422552, 472264, 520064, 537472, 581248, 617576, 845104, 944528, 1003561, 1235152, 1690208, 1889056, 2007122, 2470304, 3380416, 3778112, 4014244, 4940608, 6760832, 7556224, 8028488, 9881216, 16056976, 32113952, 64227904, 128455808]

約数ペア:

[(1, 128455808), (2, 64227904), (4, 32113952), (8, 16056976), (13, 9881216), (16, 8028488), (17, 7556224), (19, 6760832), (26, 4940608), (32, 4014244), (34, 3778112), (38, 3380416), (52, 2470304), (64, 2007122), (68, 1889056), (76, 1690208), (104, 1235152), (128, 1003561), (136, 944528), (152, 845104), (208, 617576), (221, 581248), (239, 537472), (247, 520064), (272, 472264), (304, 422552), (323, 397696), (416, 308788), (442, 290624), (478, 268736), (494, 260032), (544, 236132), (608, 211276), (646, 198848), (832, 154394), (884, 145312), (956, 134368), (988, 130016), (1088, 118066), (1216, 105638), (1292, 99424), (1664, 77197), (1768, 72656), (1912, 67184), (1976, 65008), (2176, 59033), (2432, 52819), (2584, 49712), (3107, 41344), (3536, 36328), (3824, 33592), (3952, 32504), (4063, 31616), (4199, 30592), (4541, 28288), (5168, 24856), (6214, 20672), (7072, 18164), (7648, 16796), (7904, 16252), (8126, 15808), (8398, 15296), (9082, 14144), (10336, 12428)]