51611395

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 70076160

約数和(自身を除く): 18464765

約数列:

[1, 5, 11, 43, 55, 139, 157, 215, 473, 695, 785, 1529, 1727, 2365, 5977, 6751, 7645, 8635, 21823, 29885, 33755, 65747, 74261, 109115, 240053, 328735, 371305, 938389, 1200265, 4691945, 10322279, 51611395]

約数ペア:

[(1, 51611395), (5, 10322279), (11, 4691945), (43, 1200265), (55, 938389), (139, 371305), (157, 328735), (215, 240053), (473, 109115), (695, 74261), (785, 65747), (1529, 33755), (1727, 29885), (2365, 21823), (5977, 8635), (6751, 7645)]