81400256

素因数分解:

$2^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:242

約数の個数: 112

約数和(自身を含む): 198485760

約数和(自身を除く): 117085504

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 73, 76, 112, 131, 133, 146, 152, 224, 262, 266, 292, 304, 448, 511, 524, 532, 584, 608, 917, 1022, 1048, 1064, 1168, 1216, 1387, 1834, 2044, 2096, 2128, 2336, 2489, 2774, 3668, 4088, 4192, 4256, 4672, 4978, 5548, 7336, 8176, 8384, 8512, 9563, 9709, 9956, 11096, 14672, 16352, 17423, 19126, 19418, 19912, 22192, 29344, 32704, 34846, 38252, 38836, 39824, 44384, 58688, 66941, 69692, 76504, 77672, 79648, 88768, 133882, 139384, 153008, 155344, 159296, 181697, 267764, 278768, 306016, 310688, 363394, 535528, 557536, 612032, 621376, 726788, 1071056, 1115072, 1271879, 1453576, 2142112, 2543758, 2907152, 4284224, 5087516, 5814304, 10175032, 11628608, 20350064, 40700128, 81400256]

約数ペア:

[(1, 81400256), (2, 40700128), (4, 20350064), (7, 11628608), (8, 10175032), (14, 5814304), (16, 5087516), (19, 4284224), (28, 2907152), (32, 2543758), (38, 2142112), (56, 1453576), (64, 1271879), (73, 1115072), (76, 1071056), (112, 726788), (131, 621376), (133, 612032), (146, 557536), (152, 535528), (224, 363394), (262, 310688), (266, 306016), (292, 278768), (304, 267764), (448, 181697), (511, 159296), (524, 155344), (532, 153008), (584, 139384), (608, 133882), (917, 88768), (1022, 79648), (1048, 77672), (1064, 76504), (1168, 69692), (1216, 66941), (1387, 58688), (1834, 44384), (2044, 39824), (2096, 38836), (2128, 38252), (2336, 34846), (2489, 32704), (2774, 29344), (3668, 22192), (4088, 19912), (4192, 19418), (4256, 19126), (4672, 17423), (4978, 16352), (5548, 14672), (7336, 11096), (8176, 9956), (8384, 9709), (8512, 9563)]