81754955

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 107075520

約数和(自身を除く): 25320565

約数列:

[1, 5, 17, 85, 89, 101, 107, 445, 505, 535, 1513, 1717, 1819, 7565, 8585, 8989, 9095, 9523, 10807, 44945, 47615, 54035, 152813, 161891, 183719, 764065, 809455, 918595, 961823, 4809115, 16350991, 81754955]

約数ペア:

[(1, 81754955), (5, 16350991), (17, 4809115), (85, 961823), (89, 918595), (101, 809455), (107, 764065), (445, 183719), (505, 161891), (535, 152813), (1513, 54035), (1717, 47615), (1819, 44945), (7565, 10807), (8585, 9523), (8989, 9095)]