18729890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1949}}^1$

素因数の和:2018

約数の個数: 24

約数和(自身を含む): 34854300

約数和(自身を除く): 16124410

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1922, 1949, 3898, 4805, 9610, 9745, 19490, 60419, 120838, 302095, 604190, 1872989, 3745978, 9364945, 18729890]

約数ペア:

[(1, 18729890), (2, 9364945), (5, 3745978), (10, 1872989), (31, 604190), (62, 302095), (155, 120838), (310, 60419), (961, 19490), (1922, 9745), (1949, 9610), (3898, 4805)]