25202980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1051}}^1$

素因数の和:1180

約数の個数: 48

約数和(自身を含む): 58322880

約数和(自身を除く): 33119900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 1051, 1090, 1199, 2102, 2180, 2398, 4204, 4796, 5255, 5995, 10510, 11561, 11990, 21020, 23122, 23980, 46244, 57805, 114559, 115610, 229118, 231220, 458236, 572795, 1145590, 1260149, 2291180, 2520298, 5040596, 6300745, 12601490, 25202980]

約数ペア:

[(1, 25202980), (2, 12601490), (4, 6300745), (5, 5040596), (10, 2520298), (11, 2291180), (20, 1260149), (22, 1145590), (44, 572795), (55, 458236), (109, 231220), (110, 229118), (218, 115610), (220, 114559), (436, 57805), (545, 46244), (1051, 23980), (1090, 23122), (1199, 21020), (2102, 11990), (2180, 11561), (2398, 10510), (4204, 5995), (4796, 5255)]