25807640

素因数分解:

$2^3\times 5^1\times {\mathrm{769}}^1\times {\mathrm{839}}^1$

素因数の和:1619

約数の個数: 32

約数和(自身を含む): 58212000

約数和(自身を除く): 32404360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 769, 839, 1538, 1678, 3076, 3356, 3845, 4195, 6152, 6712, 7690, 8390, 15380, 16780, 30760, 33560, 645191, 1290382, 2580764, 3225955, 5161528, 6451910, 12903820, 25807640]

約数ペア:

[(1, 25807640), (2, 12903820), (4, 6451910), (5, 5161528), (8, 3225955), (10, 2580764), (20, 1290382), (40, 645191), (769, 33560), (839, 30760), (1538, 16780), (1678, 15380), (3076, 8390), (3356, 7690), (3845, 6712), (4195, 6152)]