20509181872

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1\times {\mathrm{1789}}^1$

素因数の和:2654

約数の個数: 80

約数和(自身を含む): 42509779200

約数和(自身を除く): 22000597328

約数列:

[1, 2, 4, 8, 16, 29, 31, 58, 62, 116, 124, 232, 248, 464, 496, 797, 899, 1594, 1789, 1798, 3188, 3578, 3596, 6376, 7156, 7192, 12752, 14312, 14384, 23113, 24707, 28624, 46226, 49414, 51881, 55459, 92452, 98828, 103762, 110918, 184904, 197656, 207524, 221836, 369808, 395312, 415048, 443672, 716503, 830096, 887344, 1425833, 1433006, 1608311, 2851666, 2866012, 3216622, 5703332, 5732024, 6433244, 11406664, 11464048, 12866488, 22813328, 25732976, 41349157, 44200823, 82698314, 88401646, 165396628, 176803292, 330793256, 353606584, 661586512, 707213168, 1281823867, 2563647734, 5127295468, 10254590936, 20509181872]

約数ペア:

[(1, 20509181872), (2, 10254590936), (4, 5127295468), (8, 2563647734), (16, 1281823867), (29, 707213168), (31, 661586512), (58, 353606584), (62, 330793256), (116, 176803292), (124, 165396628), (232, 88401646), (248, 82698314), (464, 44200823), (496, 41349157), (797, 25732976), (899, 22813328), (1594, 12866488), (1789, 11464048), (1798, 11406664), (3188, 6433244), (3578, 5732024), (3596, 5703332), (6376, 3216622), (7156, 2866012), (7192, 2851666), (12752, 1608311), (14312, 1433006), (14384, 1425833), (23113, 887344), (24707, 830096), (28624, 716503), (46226, 443672), (49414, 415048), (51881, 395312), (55459, 369808), (92452, 221836), (98828, 207524), (103762, 197656), (110918, 184904)]