19161220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5669}}^1$

素因数の和:5704

約数の個数: 36

約数和(自身を含む): 43579620

約数和(自身を除く): 24418400

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 5669, 11338, 22676, 28345, 56690, 73697, 113380, 147394, 294788, 368485, 736970, 958061, 1473940, 1916122, 3832244, 4790305, 9580610, 19161220]

約数ペア:

[(1, 19161220), (2, 9580610), (4, 4790305), (5, 3832244), (10, 1916122), (13, 1473940), (20, 958061), (26, 736970), (52, 368485), (65, 294788), (130, 147394), (169, 113380), (260, 73697), (338, 56690), (676, 28345), (845, 22676), (1690, 11338), (3380, 5669)]