81435744

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21751}}^1$

素因数の和:21780

約数の個数: 72

約数和(自身を含む): 249408432

約数和(自身を除く): 167972688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 21751, 43502, 65253, 87004, 130506, 174008, 195759, 261012, 282763, 348016, 391518, 522024, 565526, 696032, 783036, 848289, 1044048, 1131052, 1566072, 1696578, 2088096, 2262104, 2544867, 3132144, 3393156, 4524208, 5089734, 6264288, 6786312, 9048416, 10179468, 13572624, 20358936, 27145248, 40717872, 81435744]

約数ペア:

[(1, 81435744), (2, 40717872), (3, 27145248), (4, 20358936), (6, 13572624), (8, 10179468), (9, 9048416), (12, 6786312), (13, 6264288), (16, 5089734), (18, 4524208), (24, 3393156), (26, 3132144), (32, 2544867), (36, 2262104), (39, 2088096), (48, 1696578), (52, 1566072), (72, 1131052), (78, 1044048), (96, 848289), (104, 783036), (117, 696032), (144, 565526), (156, 522024), (208, 391518), (234, 348016), (288, 282763), (312, 261012), (416, 195759), (468, 174008), (624, 130506), (936, 87004), (1248, 65253), (1872, 43502), (3744, 21751)]