39377320

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1531}}^1$

素因数の和:2185

約数の個数: 32

約数和(自身を含む): 88794720

約数和(自身を除く): 49417400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 1531, 2572, 3062, 3215, 5144, 6124, 6430, 7655, 12248, 12860, 15310, 25720, 30620, 61240, 984433, 1968866, 3937732, 4922165, 7875464, 9844330, 19688660, 39377320]

約数ペア:

[(1, 39377320), (2, 19688660), (4, 9844330), (5, 7875464), (8, 4922165), (10, 3937732), (20, 1968866), (40, 984433), (643, 61240), (1286, 30620), (1531, 25720), (2572, 15310), (3062, 12860), (3215, 12248), (5144, 7655), (6124, 6430)]