81402308

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1753}}^1$

素因数の和:1836

約数の個数: 48

約数和(自身を含む): 165016320

約数和(自身を除く): 83614012

約数列:

[1, 2, 4, 13, 19, 26, 38, 47, 52, 76, 94, 188, 247, 494, 611, 893, 988, 1222, 1753, 1786, 2444, 3506, 3572, 7012, 11609, 22789, 23218, 33307, 45578, 46436, 66614, 82391, 91156, 133228, 164782, 329564, 432991, 865982, 1071083, 1565429, 1731964, 2142166, 3130858, 4284332, 6261716, 20350577, 40701154, 81402308]

約数ペア:

[(1, 81402308), (2, 40701154), (4, 20350577), (13, 6261716), (19, 4284332), (26, 3130858), (38, 2142166), (47, 1731964), (52, 1565429), (76, 1071083), (94, 865982), (188, 432991), (247, 329564), (494, 164782), (611, 133228), (893, 91156), (988, 82391), (1222, 66614), (1753, 46436), (1786, 45578), (2444, 33307), (3506, 23218), (3572, 22789), (7012, 11609)]