280494448

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1061}}^1$

素因数の和:1154

約数の個数: 80

約数和(自身を含む): 619460352

約数和(自身を除く): 338965904

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 41, 52, 62, 82, 104, 124, 164, 208, 248, 328, 403, 496, 533, 656, 806, 1061, 1066, 1271, 1612, 2122, 2132, 2542, 3224, 4244, 4264, 5084, 6448, 8488, 8528, 10168, 13793, 16523, 16976, 20336, 27586, 32891, 33046, 43501, 55172, 65782, 66092, 87002, 110344, 131564, 132184, 174004, 220688, 263128, 264368, 348008, 427583, 526256, 565513, 696016, 855166, 1131026, 1348531, 1710332, 2262052, 2697062, 3420664, 4524104, 5394124, 6841328, 9048208, 10788248, 17530903, 21576496, 35061806, 70123612, 140247224, 280494448]

約数ペア:

[(1, 280494448), (2, 140247224), (4, 70123612), (8, 35061806), (13, 21576496), (16, 17530903), (26, 10788248), (31, 9048208), (41, 6841328), (52, 5394124), (62, 4524104), (82, 3420664), (104, 2697062), (124, 2262052), (164, 1710332), (208, 1348531), (248, 1131026), (328, 855166), (403, 696016), (496, 565513), (533, 526256), (656, 427583), (806, 348008), (1061, 264368), (1066, 263128), (1271, 220688), (1612, 174004), (2122, 132184), (2132, 131564), (2542, 110344), (3224, 87002), (4244, 66092), (4264, 65782), (5084, 55172), (6448, 43501), (8488, 33046), (8528, 32891), (10168, 27586), (13793, 20336), (16523, 16976)]