1640650940

素因数分解:

$2^2\times 5^1\times {\mathrm{7103}}^1\times {\mathrm{11549}}^1$

素因数の和:18661

約数の個数: 24

約数和(自身を含む): 3446150400

約数和(自身を除く): 1805499460

約数列:

[1, 2, 4, 5, 10, 20, 7103, 11549, 14206, 23098, 28412, 35515, 46196, 57745, 71030, 115490, 142060, 230980, 82032547, 164065094, 328130188, 410162735, 820325470, 1640650940]

約数ペア:

[(1, 1640650940), (2, 820325470), (4, 410162735), (5, 328130188), (10, 164065094), (20, 82032547), (7103, 230980), (11549, 142060), (14206, 115490), (23098, 71030), (28412, 57745), (35515, 46196)]