85747780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{907}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 187629120

約数和(自身を除く): 101881340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 163, 290, 326, 580, 652, 815, 907, 1630, 1814, 3260, 3628, 4535, 4727, 9070, 9454, 18140, 18908, 23635, 26303, 47270, 52606, 94540, 105212, 131515, 147841, 263030, 295682, 526060, 591364, 739205, 1478410, 2956820, 4287389, 8574778, 17149556, 21436945, 42873890, 85747780]

約数ペア:

[(1, 85747780), (2, 42873890), (4, 21436945), (5, 17149556), (10, 8574778), (20, 4287389), (29, 2956820), (58, 1478410), (116, 739205), (145, 591364), (163, 526060), (290, 295682), (326, 263030), (580, 147841), (652, 131515), (815, 105212), (907, 94540), (1630, 52606), (1814, 47270), (3260, 26303), (3628, 23635), (4535, 18908), (4727, 18140), (9070, 9454)]