289489420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1315861}}^1$

素因数の和:1315881

約数の個数: 24

約数和(自身を含む): 663194448

約数和(自身を除く): 373705028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1315861, 2631722, 5263444, 6579305, 13158610, 14474471, 26317220, 28948942, 57897884, 72372355, 144744710, 289489420]

約数ペア:

[(1, 289489420), (2, 144744710), (4, 72372355), (5, 57897884), (10, 28948942), (11, 26317220), (20, 14474471), (22, 13158610), (44, 6579305), (55, 5263444), (110, 2631722), (220, 1315861)]