49901995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{983}}^1$

素因数の和:1083

約数の個数: 32

約数和(自身を含む): 71414784

約数和(自身を除く): 21512789

約数列:

[1, 5, 11, 13, 55, 65, 71, 143, 355, 715, 781, 923, 983, 3905, 4615, 4915, 10153, 10813, 12779, 50765, 54065, 63895, 69793, 140569, 348965, 702845, 767723, 907309, 3838615, 4536545, 9980399, 49901995]

約数ペア:

[(1, 49901995), (5, 9980399), (11, 4536545), (13, 3838615), (55, 907309), (65, 767723), (71, 702845), (143, 348965), (355, 140569), (715, 69793), (781, 63895), (923, 54065), (983, 50765), (3905, 12779), (4615, 10813), (4915, 10153)]