19880090

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1$

素因数の和:434

約数の個数: 32

約数和(自身を含む): 36747216

約数和(自身を除く): 16867126

約数列:

[1, 2, 5, 10, 73, 113, 146, 226, 241, 365, 482, 565, 730, 1130, 1205, 2410, 8249, 16498, 17593, 27233, 35186, 41245, 54466, 82490, 87965, 136165, 175930, 272330, 1988009, 3976018, 9940045, 19880090]

約数ペア:

[(1, 19880090), (2, 9940045), (5, 3976018), (10, 1988009), (73, 272330), (113, 175930), (146, 136165), (226, 87965), (241, 82490), (365, 54466), (482, 41245), (565, 35186), (730, 27233), (1130, 17593), (1205, 16498), (2410, 8249)]