320551

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:222

約数の個数: 16

約数和(自身を含む): 419328

約数和(自身を除く): 98777

約数列:

[1, 7, 11, 23, 77, 161, 181, 253, 1267, 1771, 1991, 4163, 13937, 29141, 45793, 320551]

約数ペア:

[(1, 320551), (7, 45793), (11, 29141), (23, 13937), (77, 4163), (161, 1991), (181, 1771), (253, 1267)]