661642465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{7951}}^1$

素因数の和:8073

約数の個数: 32

約数和(自身を含む): 927521280

約数和(自身を除く): 265878815

約数列:

[1, 5, 11, 17, 55, 85, 89, 187, 445, 935, 979, 1513, 4895, 7565, 7951, 16643, 39755, 83215, 87461, 135167, 437305, 675835, 707639, 1486837, 3538195, 7434185, 7784029, 12029863, 38920145, 60149315, 132328493, 661642465]

約数ペア:

[(1, 661642465), (5, 132328493), (11, 60149315), (17, 38920145), (55, 12029863), (85, 7784029), (89, 7434185), (187, 3538195), (445, 1486837), (935, 707639), (979, 675835), (1513, 437305), (4895, 135167), (7565, 87461), (7951, 83215), (16643, 39755)]