42965620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19709}}^1$

素因数の和:19827

約数の個数: 24

約数和(自身を含む): 91060200

約数和(自身を除く): 48094580

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 19709, 39418, 78836, 98545, 197090, 394180, 2148281, 4296562, 8593124, 10741405, 21482810, 42965620]

約数ペア:

[(1, 42965620), (2, 21482810), (4, 10741405), (5, 8593124), (10, 4296562), (20, 2148281), (109, 394180), (218, 197090), (436, 98545), (545, 78836), (1090, 39418), (2180, 19709)]