280487961

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5749}}^1$

素因数の和:5910

約数の個数: 32

約数和(自身を含む): 450800000

約数和(自身を除く): 170312039

約数列:

[1, 3, 9, 13, 27, 39, 117, 139, 351, 417, 1251, 1807, 3753, 5421, 5749, 16263, 17247, 48789, 51741, 74737, 155223, 224211, 672633, 799111, 2017899, 2397333, 7191999, 10388443, 21575997, 31165329, 93495987, 280487961]

約数ペア:

[(1, 280487961), (3, 93495987), (9, 31165329), (13, 21575997), (27, 10388443), (39, 7191999), (117, 2397333), (139, 2017899), (351, 799111), (417, 672633), (1251, 224211), (1807, 155223), (3753, 74737), (5421, 51741), (5749, 48789), (16263, 17247)]