31800559

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 8519441

約数列:

[1, 7, 23, 29, 49, 139, 161, 203, 343, 667, 973, 1127, 1421, 3197, 4031, 4669, 6811, 7889, 9947, 22379, 28217, 32683, 47677, 92713, 156653, 197519, 228781, 648991, 1096571, 1382633, 4542937, 31800559]

約数ペア:

[(1, 31800559), (7, 4542937), (23, 1382633), (29, 1096571), (49, 648991), (139, 228781), (161, 197519), (203, 156653), (343, 92713), (667, 47677), (973, 32683), (1127, 28217), (1421, 22379), (3197, 9947), (4031, 7889), (4669, 6811)]