18390690976

素因数分解:

$2^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{19913}}^1$

素因数の和:19987

約数の個数: 144

約数和(自身を含む): 45767151360

約数和(自身を除く): 27376460384

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 32, 38, 49, 56, 62, 76, 98, 112, 124, 133, 152, 196, 217, 224, 248, 266, 304, 392, 434, 496, 532, 589, 608, 784, 868, 931, 992, 1064, 1178, 1519, 1568, 1736, 1862, 2128, 2356, 3038, 3472, 3724, 4123, 4256, 4712, 6076, 6944, 7448, 8246, 9424, 12152, 14896, 16492, 18848, 19913, 24304, 28861, 29792, 32984, 39826, 48608, 57722, 65968, 79652, 115444, 131936, 139391, 159304, 230888, 278782, 318608, 378347, 461776, 557564, 617303, 637216, 756694, 923552, 975737, 1115128, 1234606, 1513388, 1951474, 2230256, 2469212, 2648429, 3026776, 3902948, 4321121, 4460512, 4938424, 5296858, 6053552, 7805896, 8642242, 9876848, 10593716, 11728757, 12107104, 15611792, 17284484, 18539003, 19753696, 21187432, 23457514, 30247847, 31223584, 34568968, 37078006, 42374864, 46915028, 60495694, 69137936, 74156012, 82101299, 84749728, 93830056, 120991388, 138275872, 148312024, 164202598, 187660112, 241982776, 296624048, 328405196, 375320224, 483965552, 574709093, 593248096, 656810392, 967931104, 1149418186, 1313620784, 2298836372, 2627241568, 4597672744, 9195345488, 18390690976]

約数ペア:

[(1, 18390690976), (2, 9195345488), (4, 4597672744), (7, 2627241568), (8, 2298836372), (14, 1313620784), (16, 1149418186), (19, 967931104), (28, 656810392), (31, 593248096), (32, 574709093), (38, 483965552), (49, 375320224), (56, 328405196), (62, 296624048), (76, 241982776), (98, 187660112), (112, 164202598), (124, 148312024), (133, 138275872), (152, 120991388), (196, 93830056), (217, 84749728), (224, 82101299), (248, 74156012), (266, 69137936), (304, 60495694), (392, 46915028), (434, 42374864), (496, 37078006), (532, 34568968), (589, 31223584), (608, 30247847), (784, 23457514), (868, 21187432), (931, 19753696), (992, 18539003), (1064, 17284484), (1178, 15611792), (1519, 12107104), (1568, 11728757), (1736, 10593716), (1862, 9876848), (2128, 8642242), (2356, 7805896), (3038, 6053552), (3472, 5296858), (3724, 4938424), (4123, 4460512), (4256, 4321121), (4712, 3902948), (6076, 3026776), (6944, 2648429), (7448, 2469212), (8246, 2230256), (9424, 1951474), (12152, 1513388), (14896, 1234606), (16492, 1115128), (18848, 975737), (19913, 923552), (24304, 756694), (28861, 637216), (29792, 617303), (32984, 557564), (39826, 461776), (48608, 378347), (57722, 318608), (65968, 278782), (79652, 230888), (115444, 159304), (131936, 139391)]