320439721

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{15661}}^1$

素因数の和:15784

約数の個数: 16

約数和(自身を含む): 380899840

約数和(自身を除く): 60460119

約数列:

[1, 7, 37, 79, 259, 553, 2923, 15661, 20461, 109627, 579457, 1237219, 4056199, 8660533, 45777103, 320439721]

約数ペア:

[(1, 320439721), (7, 45777103), (37, 8660533), (79, 4056199), (259, 1237219), (553, 579457), (2923, 109627), (15661, 20461)]