20870108

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1409}}^1$

素因数の和:1466

約数の個数: 36

約数和(自身を含む): 43664880

約数和(自身を除く): 22794772

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 529, 644, 1058, 1409, 2116, 2818, 3703, 5636, 7406, 9863, 14812, 19726, 32407, 39452, 64814, 129628, 226849, 453698, 745361, 907396, 1490722, 2981444, 5217527, 10435054, 20870108]

約数ペア:

[(1, 20870108), (2, 10435054), (4, 5217527), (7, 2981444), (14, 1490722), (23, 907396), (28, 745361), (46, 453698), (92, 226849), (161, 129628), (322, 64814), (529, 39452), (644, 32407), (1058, 19726), (1409, 14812), (2116, 9863), (2818, 7406), (3703, 5636)]