39740815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 52690176

約数和(自身を除く): 12949361

約数列:

[1, 5, 17, 43, 83, 85, 131, 215, 415, 655, 731, 1411, 2227, 3569, 3655, 5633, 7055, 10873, 11135, 17845, 28165, 54365, 60673, 95761, 184841, 303365, 467539, 478805, 924205, 2337695, 7948163, 39740815]

約数ペア:

[(1, 39740815), (5, 7948163), (17, 2337695), (43, 924205), (83, 478805), (85, 467539), (131, 303365), (215, 184841), (415, 95761), (655, 60673), (731, 54365), (1411, 28165), (2227, 17845), (3569, 11135), (3655, 10873), (5633, 7055)]