25806416

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:399

約数の個数: 40

約数和(自身を含む): 51455784

約数和(自身を除く): 25649368

約数列:

[1, 2, 4, 8, 16, 61, 122, 137, 193, 244, 274, 386, 488, 548, 772, 976, 1096, 1544, 2192, 3088, 8357, 11773, 16714, 23546, 26441, 33428, 47092, 52882, 66856, 94184, 105764, 133712, 188368, 211528, 423056, 1612901, 3225802, 6451604, 12903208, 25806416]

約数ペア:

[(1, 25806416), (2, 12903208), (4, 6451604), (8, 3225802), (16, 1612901), (61, 423056), (122, 211528), (137, 188368), (193, 133712), (244, 105764), (274, 94184), (386, 66856), (488, 52882), (548, 47092), (772, 33428), (976, 26441), (1096, 23546), (1544, 16714), (2192, 11773), (3088, 8357)]