1223821420

素因数分解:

$2^2\times 5^1\times {\mathrm{3557}}^1\times {\mathrm{17203}}^1$

素因数の和:20769

約数の個数: 24

約数和(自身を含む): 2570896944

約数和(自身を除く): 1347075524

約数列:

[1, 2, 4, 5, 10, 20, 3557, 7114, 14228, 17203, 17785, 34406, 35570, 68812, 71140, 86015, 172030, 344060, 61191071, 122382142, 244764284, 305955355, 611910710, 1223821420]

約数ペア:

[(1, 1223821420), (2, 611910710), (4, 305955355), (5, 244764284), (10, 122382142), (20, 61191071), (3557, 344060), (7114, 172030), (14228, 86015), (17203, 71140), (17785, 68812), (34406, 35570)]