819728

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{563}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 1958208

約数和(自身を除く): 1138480

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 563, 728, 1126, 1456, 2252, 3941, 4504, 7319, 7882, 9008, 14638, 15764, 29276, 31528, 51233, 58552, 63056, 102466, 117104, 204932, 409864, 819728]

約数ペア:

[(1, 819728), (2, 409864), (4, 204932), (7, 117104), (8, 102466), (13, 63056), (14, 58552), (16, 51233), (26, 31528), (28, 29276), (52, 15764), (56, 14638), (91, 9008), (104, 7882), (112, 7319), (182, 4504), (208, 3941), (364, 2252), (563, 1456), (728, 1126)]