20508733456

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{3550681}}^1$

素因数の和:3550727

約数の個数: 30

約数和(自身を含む): 41937105102

約数和(自身を除く): 21428371646

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 361, 722, 1444, 2888, 5776, 3550681, 7101362, 14202724, 28405448, 56810896, 67462939, 134925878, 269851756, 539703512, 1079407024, 1281795841, 2563591682, 5127183364, 10254366728, 20508733456]

約数ペア:

[(1, 20508733456), (2, 10254366728), (4, 5127183364), (8, 2563591682), (16, 1281795841), (19, 1079407024), (38, 539703512), (76, 269851756), (152, 134925878), (304, 67462939), (361, 56810896), (722, 28405448), (1444, 14202724), (2888, 7101362), (5776, 3550681)]