20794218688

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{521}}^1\times {\mathrm{20117}}^1$

素因数の和:20681

約数の個数: 56

約数和(自身を含む): 42678486144

約数和(自身を除く): 21884267456

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 521, 992, 1042, 1984, 2084, 4168, 8336, 16151, 16672, 20117, 32302, 33344, 40234, 64604, 80468, 129208, 160936, 258416, 321872, 516832, 623627, 643744, 1033664, 1247254, 1287488, 2494508, 4989016, 9978032, 10480957, 19956064, 20961914, 39912128, 41923828, 83847656, 167695312, 324909667, 335390624, 649819334, 670781248, 1299638668, 2599277336, 5198554672, 10397109344, 20794218688]

約数ペア:

[(1, 20794218688), (2, 10397109344), (4, 5198554672), (8, 2599277336), (16, 1299638668), (31, 670781248), (32, 649819334), (62, 335390624), (64, 324909667), (124, 167695312), (248, 83847656), (496, 41923828), (521, 39912128), (992, 20961914), (1042, 19956064), (1984, 10480957), (2084, 9978032), (4168, 4989016), (8336, 2494508), (16151, 1287488), (16672, 1247254), (20117, 1033664), (32302, 643744), (33344, 623627), (40234, 516832), (64604, 321872), (80468, 258416), (129208, 160936)]