25509320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{14831}}^1$

素因数の和:14885

約数の個数: 32

約数和(自身を含む): 58734720

約数和(自身を除く): 33225400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 14831, 29662, 59324, 74155, 118648, 148310, 296620, 593240, 637733, 1275466, 2550932, 3188665, 5101864, 6377330, 12754660, 25509320]

約数ペア:

[(1, 25509320), (2, 12754660), (4, 6377330), (5, 5101864), (8, 3188665), (10, 2550932), (20, 1275466), (40, 637733), (43, 593240), (86, 296620), (172, 148310), (215, 118648), (344, 74155), (430, 59324), (860, 29662), (1720, 14831)]