55520420

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{21191}}^1$

素因数の和:21331

約数の個数: 24

約数和(自身を含む): 117488448

約数和(自身を除く): 61968028

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 21191, 42382, 84764, 105955, 211910, 423820, 2776021, 5552042, 11104084, 13880105, 27760210, 55520420]

約数ペア:

[(1, 55520420), (2, 27760210), (4, 13880105), (5, 11104084), (10, 5552042), (20, 2776021), (131, 423820), (262, 211910), (524, 105955), (655, 84764), (1310, 42382), (2620, 21191)]