165721785

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{11171}}^1$

素因数の和:11245

約数の個数: 32

約数和(自身を含む): 283143168

約数和(自身を除く): 117421383

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 2967, 4945, 11171, 14835, 33513, 55855, 167565, 256933, 480353, 770799, 1284665, 1441059, 2401765, 3853995, 7205295, 11048119, 33144357, 55240595, 165721785]

約数ペア:

[(1, 165721785), (3, 55240595), (5, 33144357), (15, 11048119), (23, 7205295), (43, 3853995), (69, 2401765), (115, 1441059), (129, 1284665), (215, 770799), (345, 480353), (645, 256933), (989, 167565), (2967, 55855), (4945, 33513), (11171, 14835)]