19604780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75403}}^1$

素因数の和:75425

約数の個数: 24

約数和(自身を含む): 44337552

約数和(自身を除く): 24732772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 75403, 150806, 301612, 377015, 754030, 980239, 1508060, 1960478, 3920956, 4901195, 9802390, 19604780]

約数ペア:

[(1, 19604780), (2, 9802390), (4, 4901195), (5, 3920956), (10, 1960478), (13, 1508060), (20, 980239), (26, 754030), (52, 377015), (65, 301612), (130, 150806), (260, 75403)]