219902990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{76091}}^1$

素因数の和:76132

約数の個数: 24

約数和(自身を含む): 420484392

約数和(自身を除く): 200581402

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 76091, 152182, 380455, 760910, 1293547, 2587094, 6467735, 12935470, 21990299, 43980598, 109951495, 219902990]

約数ペア:

[(1, 219902990), (2, 109951495), (5, 43980598), (10, 21990299), (17, 12935470), (34, 6467735), (85, 2587094), (170, 1293547), (289, 760910), (578, 380455), (1445, 152182), (2890, 76091)]