65097320

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2531}}^1$

素因数の和:3185

約数の個数: 32

約数和(自身を含む): 146754720

約数和(自身を除く): 81657400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2531, 2572, 3215, 5062, 5144, 6430, 10124, 12655, 12860, 20248, 25310, 25720, 50620, 101240, 1627433, 3254866, 6509732, 8137165, 13019464, 16274330, 32548660, 65097320]

約数ペア:

[(1, 65097320), (2, 32548660), (4, 16274330), (5, 13019464), (8, 8137165), (10, 6509732), (20, 3254866), (40, 1627433), (643, 101240), (1286, 50620), (2531, 25720), (2572, 25310), (3215, 20248), (5062, 12860), (5144, 12655), (6430, 10124)]