398249761

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{1063}}^1$

素因数の和:1285

約数の個数: 32

約数和(自身を含む): 514805760

約数和(自身を除く): 116555999

約数列:

[1, 7, 13, 23, 91, 161, 179, 299, 1063, 1253, 2093, 2327, 4117, 7441, 13819, 16289, 24449, 28819, 53521, 96733, 171143, 190277, 317837, 374647, 1331939, 2224859, 2473601, 4376371, 17315207, 30634597, 56892823, 398249761]

約数ペア:

[(1, 398249761), (7, 56892823), (13, 30634597), (23, 17315207), (91, 4376371), (161, 2473601), (179, 2224859), (299, 1331939), (1063, 374647), (1253, 317837), (2093, 190277), (2327, 171143), (4117, 96733), (7441, 53521), (13819, 28819), (16289, 24449)]