19947420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110819}}^1$

素因数の和:110834

約数の個数: 36

約数和(自身を含む): 60507720

約数和(自身を除く): 40560300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110819, 221638, 332457, 443276, 554095, 664914, 997371, 1108190, 1329828, 1662285, 1994742, 2216380, 3324570, 3989484, 4986855, 6649140, 9973710, 19947420]

約数ペア:

[(1, 19947420), (2, 9973710), (3, 6649140), (4, 4986855), (5, 3989484), (6, 3324570), (9, 2216380), (10, 1994742), (12, 1662285), (15, 1329828), (18, 1108190), (20, 997371), (30, 664914), (36, 554095), (45, 443276), (60, 332457), (90, 221638), (180, 110819)]