198711990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{2207911}}^1$

素因数の和:2207924

約数の個数: 24

約数和(自身を含む): 516651408

約数和(自身を除く): 317939418

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 2207911, 4415822, 6623733, 11039555, 13247466, 19871199, 22079110, 33118665, 39742398, 66237330, 99355995, 198711990]

約数ペア:

[(1, 198711990), (2, 99355995), (3, 66237330), (5, 39742398), (6, 33118665), (9, 22079110), (10, 19871199), (15, 13247466), (18, 11039555), (30, 6623733), (45, 4415822), (90, 2207911)]