19127420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5659}}^1$

素因数の和:5694

約数の個数: 36

約数和(自身を含む): 43502760

約数和(自身を除く): 24375340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 5659, 11318, 22636, 28295, 56590, 73567, 113180, 147134, 294268, 367835, 735670, 956371, 1471340, 1912742, 3825484, 4781855, 9563710, 19127420]

約数ペア:

[(1, 19127420), (2, 9563710), (4, 4781855), (5, 3825484), (10, 1912742), (13, 1471340), (20, 956371), (26, 735670), (52, 367835), (65, 294268), (130, 147134), (169, 113180), (260, 73567), (338, 56590), (676, 28295), (845, 22636), (1690, 11318), (3380, 5659)]