205253455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{487}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 275466240

約数和(自身を除く): 70212785

約数列:

[1, 5, 11, 55, 79, 97, 395, 485, 487, 869, 1067, 2435, 4345, 5335, 5357, 7663, 26785, 38315, 38473, 47239, 84293, 192365, 236195, 421465, 423203, 519629, 2116015, 2598145, 3731881, 18659405, 41050691, 205253455]

約数ペア:

[(1, 205253455), (5, 41050691), (11, 18659405), (55, 3731881), (79, 2598145), (97, 2116015), (395, 519629), (485, 423203), (487, 421465), (869, 236195), (1067, 192365), (2435, 84293), (4345, 47239), (5335, 38473), (5357, 38315), (7663, 26785)]