19873725

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 35247744

約数和(自身を除く): 15374019

約数列:

[1, 3, 5, 15, 23, 25, 41, 69, 75, 115, 123, 205, 281, 345, 575, 615, 843, 943, 1025, 1405, 1725, 2829, 3075, 4215, 4715, 6463, 7025, 11521, 14145, 19389, 21075, 23575, 32315, 34563, 57605, 70725, 96945, 161575, 172815, 264983, 288025, 484725, 794949, 864075, 1324915, 3974745, 6624575, 19873725]

約数ペア:

[(1, 19873725), (3, 6624575), (5, 3974745), (15, 1324915), (23, 864075), (25, 794949), (41, 484725), (69, 288025), (75, 264983), (115, 172815), (123, 161575), (205, 96945), (281, 70725), (345, 57605), (575, 34563), (615, 32315), (843, 23575), (943, 21075), (1025, 19389), (1405, 14145), (1725, 11521), (2829, 7025), (3075, 6463), (4215, 4715)]