20455344

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1$

素因数の和:264

約数の個数: 180

約数和(自身を含む): 72037056

約数和(自身を除く): 51581712

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 36, 39, 42, 48, 49, 52, 56, 63, 72, 78, 84, 91, 98, 104, 112, 117, 126, 144, 147, 156, 168, 182, 196, 208, 223, 234, 252, 273, 294, 312, 336, 364, 392, 441, 446, 468, 504, 546, 588, 624, 637, 669, 728, 784, 819, 882, 892, 936, 1008, 1092, 1176, 1274, 1338, 1456, 1561, 1638, 1764, 1784, 1872, 1911, 2007, 2184, 2352, 2548, 2676, 2899, 3122, 3276, 3528, 3568, 3822, 4014, 4368, 4683, 5096, 5352, 5733, 5798, 6244, 6552, 7056, 7644, 8028, 8697, 9366, 10192, 10704, 10927, 11466, 11596, 12488, 13104, 14049, 15288, 16056, 17394, 18732, 20293, 21854, 22932, 23192, 24976, 26091, 28098, 30576, 32112, 32781, 34788, 37464, 40586, 43708, 45864, 46384, 52182, 56196, 60879, 65562, 69576, 74928, 81172, 87416, 91728, 98343, 104364, 112392, 121758, 131124, 139152, 142051, 162344, 174832, 182637, 196686, 208728, 224784, 243516, 262248, 284102, 324688, 365274, 393372, 417456, 426153, 487032, 524496, 568204, 730548, 786744, 852306, 974064, 1136408, 1278459, 1461096, 1573488, 1704612, 2272816, 2556918, 2922192, 3409224, 5113836, 6818448, 10227672, 20455344]

約数ペア:

[(1, 20455344), (2, 10227672), (3, 6818448), (4, 5113836), (6, 3409224), (7, 2922192), (8, 2556918), (9, 2272816), (12, 1704612), (13, 1573488), (14, 1461096), (16, 1278459), (18, 1136408), (21, 974064), (24, 852306), (26, 786744), (28, 730548), (36, 568204), (39, 524496), (42, 487032), (48, 426153), (49, 417456), (52, 393372), (56, 365274), (63, 324688), (72, 284102), (78, 262248), (84, 243516), (91, 224784), (98, 208728), (104, 196686), (112, 182637), (117, 174832), (126, 162344), (144, 142051), (147, 139152), (156, 131124), (168, 121758), (182, 112392), (196, 104364), (208, 98343), (223, 91728), (234, 87416), (252, 81172), (273, 74928), (294, 69576), (312, 65562), (336, 60879), (364, 56196), (392, 52182), (441, 46384), (446, 45864), (468, 43708), (504, 40586), (546, 37464), (588, 34788), (624, 32781), (637, 32112), (669, 30576), (728, 28098), (784, 26091), (819, 24976), (882, 23192), (892, 22932), (936, 21854), (1008, 20293), (1092, 18732), (1176, 17394), (1274, 16056), (1338, 15288), (1456, 14049), (1561, 13104), (1638, 12488), (1764, 11596), (1784, 11466), (1872, 10927), (1911, 10704), (2007, 10192), (2184, 9366), (2352, 8697), (2548, 8028), (2676, 7644), (2899, 7056), (3122, 6552), (3276, 6244), (3528, 5798), (3568, 5733), (3822, 5352), (4014, 5096), (4368, 4683)]