20408065904

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{269}}^1\times {\mathrm{48883}}^1$

素因数の和:49257

約数の個数: 40

約数和(自身を含む): 40097589840

約数和(自身を除く): 19689523936

約数列:

[1, 2, 4, 8, 16, 97, 194, 269, 388, 538, 776, 1076, 1552, 2152, 4304, 26093, 48883, 52186, 97766, 104372, 195532, 208744, 391064, 417488, 782128, 4741651, 9483302, 13149527, 18966604, 26299054, 37933208, 52598108, 75866416, 105196216, 210392432, 1275504119, 2551008238, 5102016476, 10204032952, 20408065904]

約数ペア:

[(1, 20408065904), (2, 10204032952), (4, 5102016476), (8, 2551008238), (16, 1275504119), (97, 210392432), (194, 105196216), (269, 75866416), (388, 52598108), (538, 37933208), (776, 26299054), (1076, 18966604), (1552, 13149527), (2152, 9483302), (4304, 4741651), (26093, 782128), (48883, 417488), (52186, 391064), (97766, 208744), (104372, 195532)]