81021724

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{347}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 168376320

約数和(自身を除く): 87354596

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 269, 347, 434, 538, 694, 868, 1076, 1388, 1883, 2429, 3766, 4858, 7532, 8339, 9716, 10757, 16678, 21514, 33356, 43028, 58373, 75299, 93343, 116746, 150598, 186686, 233492, 301196, 373372, 653401, 1306802, 2613604, 2893633, 5787266, 11574532, 20255431, 40510862, 81021724]

約数ペア:

[(1, 81021724), (2, 40510862), (4, 20255431), (7, 11574532), (14, 5787266), (28, 2893633), (31, 2613604), (62, 1306802), (124, 653401), (217, 373372), (269, 301196), (347, 233492), (434, 186686), (538, 150598), (694, 116746), (868, 93343), (1076, 75299), (1388, 58373), (1883, 43028), (2429, 33356), (3766, 21514), (4858, 16678), (7532, 10757), (8339, 9716)]