20718875584

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{6481}}^1$

素因数の和:6762

約数の個数: 112

約数和(自身を含む): 47417126400

約数和(自身を除く): 26698250816

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 152, 176, 209, 239, 304, 352, 418, 478, 608, 704, 836, 956, 1216, 1672, 1912, 2629, 3344, 3824, 4541, 5258, 6481, 6688, 7648, 9082, 10516, 12962, 13376, 15296, 18164, 21032, 25924, 36328, 42064, 49951, 51848, 71291, 72656, 84128, 99902, 103696, 123139, 142582, 145312, 168256, 199804, 207392, 246278, 285164, 290624, 399608, 414784, 492556, 570328, 799216, 985112, 1140656, 1354529, 1548959, 1598432, 1970224, 2281312, 2709058, 3097918, 3196864, 3940448, 4562624, 5418116, 6195836, 7880896, 10836232, 12391672, 17038549, 21672464, 24783344, 29430221, 34077098, 43344928, 49566688, 58860442, 68154196, 86689856, 99133376, 117720884, 136308392, 235441768, 272616784, 323732431, 470883536, 545233568, 647464862, 941767072, 1090467136, 1294929724, 1883534144, 2589859448, 5179718896, 10359437792, 20718875584]

約数ペア:

[(1, 20718875584), (2, 10359437792), (4, 5179718896), (8, 2589859448), (11, 1883534144), (16, 1294929724), (19, 1090467136), (22, 941767072), (32, 647464862), (38, 545233568), (44, 470883536), (64, 323732431), (76, 272616784), (88, 235441768), (152, 136308392), (176, 117720884), (209, 99133376), (239, 86689856), (304, 68154196), (352, 58860442), (418, 49566688), (478, 43344928), (608, 34077098), (704, 29430221), (836, 24783344), (956, 21672464), (1216, 17038549), (1672, 12391672), (1912, 10836232), (2629, 7880896), (3344, 6195836), (3824, 5418116), (4541, 4562624), (5258, 3940448), (6481, 3196864), (6688, 3097918), (7648, 2709058), (9082, 2281312), (10516, 1970224), (12962, 1598432), (13376, 1548959), (15296, 1354529), (18164, 1140656), (21032, 985112), (25924, 799216), (36328, 570328), (42064, 492556), (49951, 414784), (51848, 399608), (71291, 290624), (72656, 285164), (84128, 246278), (99902, 207392), (103696, 199804), (123139, 168256), (142582, 145312)]