15550420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 33965568

約数和(自身を除く): 18415148

約数列:

[1, 2, 4, 5, 10, 20, 47, 71, 94, 142, 188, 233, 235, 284, 355, 466, 470, 710, 932, 940, 1165, 1420, 2330, 3337, 4660, 6674, 10951, 13348, 16543, 16685, 21902, 33086, 33370, 43804, 54755, 66172, 66740, 82715, 109510, 165430, 219020, 330860, 777521, 1555042, 3110084, 3887605, 7775210, 15550420]

約数ペア:

[(1, 15550420), (2, 7775210), (4, 3887605), (5, 3110084), (10, 1555042), (20, 777521), (47, 330860), (71, 219020), (94, 165430), (142, 109510), (188, 82715), (233, 66740), (235, 66172), (284, 54755), (355, 43804), (466, 33370), (470, 33086), (710, 21902), (932, 16685), (940, 16543), (1165, 13348), (1420, 10951), (2330, 6674), (3337, 4660)]