20367025880

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3886837}}^1$

素因数の和:3886979

約数の個数: 32

約数和(自身を含む): 46175635440

約数和(自身を除く): 25808609560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 3886837, 7773674, 15547348, 19434185, 31094696, 38868370, 77736740, 155473480, 509175647, 1018351294, 2036702588, 2545878235, 4073405176, 5091756470, 10183512940, 20367025880]

約数ペア:

[(1, 20367025880), (2, 10183512940), (4, 5091756470), (5, 4073405176), (8, 2545878235), (10, 2036702588), (20, 1018351294), (40, 509175647), (131, 155473480), (262, 77736740), (524, 38868370), (655, 31094696), (1048, 19434185), (1310, 15547348), (2620, 7773674), (5240, 3886837)]