81123224

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{15919}}^1$

素因数の和:15952

約数の個数: 48

約数和(自身を含む): 190562400

約数和(自身を除く): 109439176

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 5096, 15919, 31838, 63676, 111433, 127352, 206947, 222866, 413894, 445732, 780031, 827788, 891464, 1448629, 1560062, 1655576, 2897258, 3120124, 5794516, 6240248, 10140403, 11589032, 20280806, 40561612, 81123224]

約数ペア:

[(1, 81123224), (2, 40561612), (4, 20280806), (7, 11589032), (8, 10140403), (13, 6240248), (14, 5794516), (26, 3120124), (28, 2897258), (49, 1655576), (52, 1560062), (56, 1448629), (91, 891464), (98, 827788), (104, 780031), (182, 445732), (196, 413894), (364, 222866), (392, 206947), (637, 127352), (728, 111433), (1274, 63676), (2548, 31838), (5096, 15919)]