20195728

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10607}}^1$

素因数の和:10639

約数の個数: 40

約数和(自身を含む): 47354112

約数和(自身を除く): 27158384

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 10607, 21214, 42428, 74249, 84856, 148498, 169712, 180319, 296996, 360638, 593992, 721276, 1187984, 1262233, 1442552, 2524466, 2885104, 5048932, 10097864, 20195728]

約数ペア:

[(1, 20195728), (2, 10097864), (4, 5048932), (7, 2885104), (8, 2524466), (14, 1442552), (16, 1262233), (17, 1187984), (28, 721276), (34, 593992), (56, 360638), (68, 296996), (112, 180319), (119, 169712), (136, 148498), (238, 84856), (272, 74249), (476, 42428), (952, 21214), (1904, 10607)]