19998970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2503}}^1$

素因数の和:2574

約数の個数: 32

約数和(自身を含む): 38942208

約数和(自身を除く): 18943238

約数列:

[1, 2, 5, 10, 17, 34, 47, 85, 94, 170, 235, 470, 799, 1598, 2503, 3995, 5006, 7990, 12515, 25030, 42551, 85102, 117641, 212755, 235282, 425510, 588205, 1176410, 1999897, 3999794, 9999485, 19998970]

約数ペア:

[(1, 19998970), (2, 9999485), (5, 3999794), (10, 1999897), (17, 1176410), (34, 588205), (47, 425510), (85, 235282), (94, 212755), (170, 117641), (235, 85102), (470, 42551), (799, 25030), (1598, 12515), (2503, 7990), (3995, 5006)]