20366959780

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{140249}}^1$

素因数の和:140448

約数の個数: 48

約数和(自身を含む): 43896006000

約数和(自身を除く): 23529046220

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 137, 212, 265, 274, 530, 548, 685, 1060, 1370, 2740, 7261, 14522, 29044, 36305, 72610, 140249, 145220, 280498, 560996, 701245, 1402490, 2804980, 7433197, 14866394, 19214113, 29732788, 37165985, 38428226, 74331970, 76856452, 96070565, 148663940, 192141130, 384282260, 1018347989, 2036695978, 4073391956, 5091739945, 10183479890, 20366959780]

約数ペア:

[(1, 20366959780), (2, 10183479890), (4, 5091739945), (5, 4073391956), (10, 2036695978), (20, 1018347989), (53, 384282260), (106, 192141130), (137, 148663940), (212, 96070565), (265, 76856452), (274, 74331970), (530, 38428226), (548, 37165985), (685, 29732788), (1060, 19214113), (1370, 14866394), (2740, 7433197), (7261, 2804980), (14522, 1402490), (29044, 701245), (36305, 560996), (72610, 280498), (140249, 145220)]