81880372

素因数分解:

$2^2\times 7^2\times {\mathrm{269}}^1\times {\mathrm{1553}}^1$

素因数の和:1840

約数の個数: 36

約数和(自身を含む): 167412420

約数和(自身を除く): 85532048

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 269, 538, 1076, 1553, 1883, 3106, 3766, 6212, 7532, 10871, 13181, 21742, 26362, 43484, 52724, 76097, 152194, 304388, 417757, 835514, 1671028, 2924299, 5848598, 11697196, 20470093, 40940186, 81880372]

約数ペア:

[(1, 81880372), (2, 40940186), (4, 20470093), (7, 11697196), (14, 5848598), (28, 2924299), (49, 1671028), (98, 835514), (196, 417757), (269, 304388), (538, 152194), (1076, 76097), (1553, 52724), (1883, 43484), (3106, 26362), (3766, 21742), (6212, 13181), (7532, 10871)]