20185490416

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1980523}}^1$

素因数の和:1980558

約数の個数: 60

約数和(自身を含む): 48994202712

約数和(自身を除く): 28808712296

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 364, 392, 637, 728, 784, 1274, 1456, 2548, 5096, 10192, 1980523, 3961046, 7922092, 13863661, 15844184, 25746799, 27727322, 31688368, 51493598, 55454644, 97045627, 102987196, 110909288, 180227593, 194091254, 205974392, 221818576, 360455186, 388182508, 411948784, 720910372, 776365016, 1261593151, 1441820744, 1552730032, 2523186302, 2883641488, 5046372604, 10092745208, 20185490416]

約数ペア:

[(1, 20185490416), (2, 10092745208), (4, 5046372604), (7, 2883641488), (8, 2523186302), (13, 1552730032), (14, 1441820744), (16, 1261593151), (26, 776365016), (28, 720910372), (49, 411948784), (52, 388182508), (56, 360455186), (91, 221818576), (98, 205974392), (104, 194091254), (112, 180227593), (182, 110909288), (196, 102987196), (208, 97045627), (364, 55454644), (392, 51493598), (637, 31688368), (728, 27727322), (784, 25746799), (1274, 15844184), (1456, 13863661), (2548, 7922092), (5096, 3961046), (10192, 1980523)]