164580520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{316501}}^1$

素因数の和:316525

約数の個数: 32

約数和(自身を含む): 398792520

約数和(自身を除く): 234212000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 316501, 633002, 1266004, 1582505, 2532008, 3165010, 4114513, 6330020, 8229026, 12660040, 16458052, 20572565, 32916104, 41145130, 82290260, 164580520]

約数ペア:

[(1, 164580520), (2, 82290260), (4, 41145130), (5, 32916104), (8, 20572565), (10, 16458052), (13, 12660040), (20, 8229026), (26, 6330020), (40, 4114513), (52, 3165010), (65, 2532008), (104, 1582505), (130, 1266004), (260, 633002), (520, 316501)]