19998982096

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{1451}}^1\times {\mathrm{9679}}^1$

素因数の和:11227

約数の個数: 40

約数和(自身を含む): 39214454400

約数和(自身を除く): 19215472304

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 1451, 2902, 5804, 9679, 11608, 19358, 23216, 38716, 77432, 129139, 154864, 258278, 516556, 861431, 1033112, 1722862, 2066224, 3445724, 6891448, 13782896, 14044229, 28088458, 56176916, 112353832, 224707664, 1249936381, 2499872762, 4999745524, 9999491048, 19998982096]

約数ペア:

[(1, 19998982096), (2, 9999491048), (4, 4999745524), (8, 2499872762), (16, 1249936381), (89, 224707664), (178, 112353832), (356, 56176916), (712, 28088458), (1424, 14044229), (1451, 13782896), (2902, 6891448), (5804, 3445724), (9679, 2066224), (11608, 1722862), (19358, 1033112), (23216, 861431), (38716, 516556), (77432, 258278), (129139, 154864)]