55420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:189

約数の個数: 24

約数和(自身を含む): 123984

約数和(自身を除く): 68564

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 163, 170, 326, 340, 652, 815, 1630, 2771, 3260, 5542, 11084, 13855, 27710, 55420]

約数ペア:

[(1, 55420), (2, 27710), (4, 13855), (5, 11084), (10, 5542), (17, 3260), (20, 2771), (34, 1630), (68, 815), (85, 652), (163, 340), (170, 326)]