978156740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{404197}}^1$

素因数の和:404228

約数の個数: 36

約数和(自身を含む): 2257850028

約数和(自身を除く): 1279693288

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 404197, 808394, 1616788, 2020985, 4041970, 4446167, 8083940, 8892334, 17784668, 22230835, 44461670, 48907837, 88923340, 97815674, 195631348, 244539185, 489078370, 978156740]

約数ペア:

[(1, 978156740), (2, 489078370), (4, 244539185), (5, 195631348), (10, 97815674), (11, 88923340), (20, 48907837), (22, 44461670), (44, 22230835), (55, 17784668), (110, 8892334), (121, 8083940), (220, 4446167), (242, 4041970), (484, 2020985), (605, 1616788), (1210, 808394), (2420, 404197)]