20145164

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12497}}^1$

素因数の和:12545

約数の個数: 24

約数和(自身を含む): 39193728

約数和(自身を除く): 19048564

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12497, 24994, 49988, 162461, 324922, 387407, 649844, 774814, 1549628, 5036291, 10072582, 20145164]

約数ペア:

[(1, 20145164), (2, 10072582), (4, 5036291), (13, 1549628), (26, 774814), (31, 649844), (52, 387407), (62, 324922), (124, 162461), (403, 49988), (806, 24994), (1612, 12497)]