80984368

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{313}}^1$

素因数の和:581

約数の個数: 40

約数和(自身を含む): 159949088

約数和(自身を除く): 78964720

約数列:

[1, 2, 4, 8, 16, 103, 157, 206, 313, 314, 412, 626, 628, 824, 1252, 1256, 1648, 2504, 2512, 5008, 16171, 32239, 32342, 49141, 64478, 64684, 98282, 128956, 129368, 196564, 257912, 258736, 393128, 515824, 786256, 5061523, 10123046, 20246092, 40492184, 80984368]

約数ペア:

[(1, 80984368), (2, 40492184), (4, 20246092), (8, 10123046), (16, 5061523), (103, 786256), (157, 515824), (206, 393128), (313, 258736), (314, 257912), (412, 196564), (626, 129368), (628, 128956), (824, 98282), (1252, 64684), (1256, 64478), (1648, 49141), (2504, 32342), (2512, 32239), (5008, 16171)]