1999619390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{821}}^1\times {\mathrm{14327}}^1$

素因数の和:15172

約数の個数: 32

約数和(自身を含む): 3815947584

約数和(自身を除く): 1816328194

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 821, 1642, 4105, 8210, 13957, 14327, 27914, 28654, 69785, 71635, 139570, 143270, 243559, 487118, 1217795, 2435590, 11762467, 23524934, 58812335, 117624670, 199961939, 399923878, 999809695, 1999619390]

約数ペア:

[(1, 1999619390), (2, 999809695), (5, 399923878), (10, 199961939), (17, 117624670), (34, 58812335), (85, 23524934), (170, 11762467), (821, 2435590), (1642, 1217795), (4105, 487118), (8210, 243559), (13957, 143270), (14327, 139570), (27914, 71635), (28654, 69785)]