19844020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20249}}^1$

素因数の和:20272

約数の個数: 36

約数和(自身を含む): 48478500

約数和(自身を除く): 28634480

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20249, 40498, 80996, 101245, 141743, 202490, 283486, 404980, 566972, 708715, 992201, 1417430, 1984402, 2834860, 3968804, 4961005, 9922010, 19844020]

約数ペア:

[(1, 19844020), (2, 9922010), (4, 4961005), (5, 3968804), (7, 2834860), (10, 1984402), (14, 1417430), (20, 992201), (28, 708715), (35, 566972), (49, 404980), (70, 283486), (98, 202490), (140, 141743), (196, 101245), (245, 80996), (490, 40498), (980, 20249)]