19738220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24071}}^1$

素因数の和:24121

約数の個数: 24

約数和(自身を含む): 42463008

約数和(自身を除く): 22724788

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 24071, 48142, 96284, 120355, 240710, 481420, 986911, 1973822, 3947644, 4934555, 9869110, 19738220]

約数ペア:

[(1, 19738220), (2, 9869110), (4, 4934555), (5, 3947644), (10, 1973822), (20, 986911), (41, 481420), (82, 240710), (164, 120355), (205, 96284), (410, 48142), (820, 24071)]