20123557552

素因数分解:

$2^4\times 7^3\times {\mathrm{19}}^1\times {\mathrm{192991}}^1$

素因数の和:193039

約数の個数: 80

約数和(自身を含む): 47862016000

約数和(自身を除く): 27738458448

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 49, 56, 76, 98, 112, 133, 152, 196, 266, 304, 343, 392, 532, 686, 784, 931, 1064, 1372, 1862, 2128, 2744, 3724, 5488, 6517, 7448, 13034, 14896, 26068, 52136, 104272, 192991, 385982, 771964, 1350937, 1543928, 2701874, 3087856, 3666829, 5403748, 7333658, 9456559, 10807496, 14667316, 18913118, 21614992, 25667803, 29334632, 37826236, 51335606, 58669264, 66195913, 75652472, 102671212, 132391826, 151304944, 179674621, 205342424, 264783652, 359349242, 410684848, 529567304, 718698484, 1059134608, 1257722347, 1437396968, 2515444694, 2874793936, 5030889388, 10061778776, 20123557552]

約数ペア:

[(1, 20123557552), (2, 10061778776), (4, 5030889388), (7, 2874793936), (8, 2515444694), (14, 1437396968), (16, 1257722347), (19, 1059134608), (28, 718698484), (38, 529567304), (49, 410684848), (56, 359349242), (76, 264783652), (98, 205342424), (112, 179674621), (133, 151304944), (152, 132391826), (196, 102671212), (266, 75652472), (304, 66195913), (343, 58669264), (392, 51335606), (532, 37826236), (686, 29334632), (784, 25667803), (931, 21614992), (1064, 18913118), (1372, 14667316), (1862, 10807496), (2128, 9456559), (2744, 7333658), (3724, 5403748), (5488, 3666829), (6517, 3087856), (7448, 2701874), (13034, 1543928), (14896, 1350937), (26068, 771964), (52136, 385982), (104272, 192991)]