198354385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 258508800

約数和(自身を除く): 60154415

約数列:

[1, 5, 17, 79, 85, 109, 271, 395, 545, 1343, 1355, 1853, 4607, 6715, 8611, 9265, 21409, 23035, 29539, 43055, 107045, 146387, 147695, 363953, 502163, 731935, 1819765, 2333581, 2510815, 11667905, 39670877, 198354385]

約数ペア:

[(1, 198354385), (5, 39670877), (17, 11667905), (79, 2510815), (85, 2333581), (109, 1819765), (271, 731935), (395, 502163), (545, 363953), (1343, 147695), (1355, 146387), (1853, 107045), (4607, 43055), (6715, 29539), (8611, 23035), (9265, 21409)]