43420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1$

素因数の和:189

約数の個数: 24

約数和(自身を含む): 98784

約数和(自身を除く): 55364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 167, 260, 334, 668, 835, 1670, 2171, 3340, 4342, 8684, 10855, 21710, 43420]

約数ペア:

[(1, 43420), (2, 21710), (4, 10855), (5, 8684), (10, 4342), (13, 3340), (20, 2171), (26, 1670), (52, 835), (65, 668), (130, 334), (167, 260)]