1381540

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1031}}^1$

素因数の和:1107

約数の個数: 24

約数和(自身を含む): 2947392

約数和(自身を除く): 1565852

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1031, 1340, 2062, 4124, 5155, 10310, 20620, 69077, 138154, 276308, 345385, 690770, 1381540]

約数ペア:

[(1, 1381540), (2, 690770), (4, 345385), (5, 276308), (10, 138154), (20, 69077), (67, 20620), (134, 10310), (268, 5155), (335, 4124), (670, 2062), (1031, 1340)]