19553440

素因数分解:

$2^5\times 5^1\times {\mathrm{122209}}^1$

素因数の和:122224

約数の個数: 24

約数和(自身を含む): 46195380

約数和(自身を除く): 26641940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 122209, 244418, 488836, 611045, 977672, 1222090, 1955344, 2444180, 3910688, 4888360, 9776720, 19553440]

約数ペア:

[(1, 19553440), (2, 9776720), (4, 4888360), (5, 3910688), (8, 2444180), (10, 1955344), (16, 1222090), (20, 977672), (32, 611045), (40, 488836), (80, 244418), (160, 122209)]