19237720

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1453}}^1$

素因数の和:1795

約数の個数: 32

約数和(自身を含む): 43445520

約数和(自身を除く): 24207800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1453, 1655, 2648, 2906, 3310, 5812, 6620, 7265, 11624, 13240, 14530, 29060, 58120, 480943, 961886, 1923772, 2404715, 3847544, 4809430, 9618860, 19237720]

約数ペア:

[(1, 19237720), (2, 9618860), (4, 4809430), (5, 3847544), (8, 2404715), (10, 1923772), (20, 961886), (40, 480943), (331, 58120), (662, 29060), (1324, 14530), (1453, 13240), (1655, 11624), (2648, 7265), (2906, 6620), (3310, 5812)]