18839968240

素因数分解:

$2^4\times 5^1\times {\mathrm{235499603}}^1$

素因数の和:235499616

約数の個数: 20

約数和(自身を含む): 43802926344

約数和(自身を除く): 24962958104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235499603, 470999206, 941998412, 1177498015, 1883996824, 2354996030, 3767993648, 4709992060, 9419984120, 18839968240]

約数ペア:

[(1, 18839968240), (2, 9419984120), (4, 4709992060), (5, 3767993648), (8, 2354996030), (10, 1883996824), (16, 1177498015), (20, 941998412), (40, 470999206), (80, 235499603)]