81521856

素因数分解:

$2^6\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:244

約数の個数: 224

約数和(自身を含む): 273100800

約数和(自身を除く): 191578944

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 27, 32, 36, 38, 39, 48, 52, 54, 57, 64, 72, 76, 78, 96, 104, 108, 114, 117, 144, 152, 156, 171, 191, 192, 208, 216, 228, 234, 247, 288, 304, 312, 342, 351, 382, 416, 432, 456, 468, 494, 513, 573, 576, 608, 624, 684, 702, 741, 764, 832, 864, 912, 936, 988, 1026, 1146, 1216, 1248, 1368, 1404, 1482, 1528, 1719, 1728, 1824, 1872, 1976, 2052, 2223, 2292, 2483, 2496, 2736, 2808, 2964, 3056, 3438, 3629, 3648, 3744, 3952, 4104, 4446, 4584, 4966, 5157, 5472, 5616, 5928, 6112, 6669, 6876, 7258, 7449, 7488, 7904, 8208, 8892, 9168, 9932, 10314, 10887, 10944, 11232, 11856, 12224, 13338, 13752, 14516, 14898, 15808, 16416, 17784, 18336, 19864, 20628, 21774, 22347, 22464, 23712, 26676, 27504, 29032, 29796, 32661, 32832, 35568, 36672, 39728, 41256, 43548, 44694, 47177, 47424, 53352, 55008, 58064, 59592, 65322, 67041, 71136, 79456, 82512, 87096, 89388, 94354, 97983, 106704, 110016, 116128, 119184, 130644, 134082, 141531, 142272, 158912, 165024, 174192, 178776, 188708, 195966, 213408, 232256, 238368, 261288, 268164, 283062, 330048, 348384, 357552, 377416, 391932, 424593, 426816, 476736, 522576, 536328, 566124, 696768, 715104, 754832, 783864, 849186, 1045152, 1072656, 1132248, 1273779, 1430208, 1509664, 1567728, 1698372, 2090304, 2145312, 2264496, 2547558, 3019328, 3135456, 3396744, 4290624, 4528992, 5095116, 6270912, 6793488, 9057984, 10190232, 13586976, 20380464, 27173952, 40760928, 81521856]

約数ペア:

[(1, 81521856), (2, 40760928), (3, 27173952), (4, 20380464), (6, 13586976), (8, 10190232), (9, 9057984), (12, 6793488), (13, 6270912), (16, 5095116), (18, 4528992), (19, 4290624), (24, 3396744), (26, 3135456), (27, 3019328), (32, 2547558), (36, 2264496), (38, 2145312), (39, 2090304), (48, 1698372), (52, 1567728), (54, 1509664), (57, 1430208), (64, 1273779), (72, 1132248), (76, 1072656), (78, 1045152), (96, 849186), (104, 783864), (108, 754832), (114, 715104), (117, 696768), (144, 566124), (152, 536328), (156, 522576), (171, 476736), (191, 426816), (192, 424593), (208, 391932), (216, 377416), (228, 357552), (234, 348384), (247, 330048), (288, 283062), (304, 268164), (312, 261288), (342, 238368), (351, 232256), (382, 213408), (416, 195966), (432, 188708), (456, 178776), (468, 174192), (494, 165024), (513, 158912), (573, 142272), (576, 141531), (608, 134082), (624, 130644), (684, 119184), (702, 116128), (741, 110016), (764, 106704), (832, 97983), (864, 94354), (912, 89388), (936, 87096), (988, 82512), (1026, 79456), (1146, 71136), (1216, 67041), (1248, 65322), (1368, 59592), (1404, 58064), (1482, 55008), (1528, 53352), (1719, 47424), (1728, 47177), (1824, 44694), (1872, 43548), (1976, 41256), (2052, 39728), (2223, 36672), (2292, 35568), (2483, 32832), (2496, 32661), (2736, 29796), (2808, 29032), (2964, 27504), (3056, 26676), (3438, 23712), (3629, 22464), (3648, 22347), (3744, 21774), (3952, 20628), (4104, 19864), (4446, 18336), (4584, 17784), (4966, 16416), (5157, 15808), (5472, 14898), (5616, 14516), (5928, 13752), (6112, 13338), (6669, 12224), (6876, 11856), (7258, 11232), (7449, 10944), (7488, 10887), (7904, 10314), (8208, 9932), (8892, 9168)]