81089428

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{907}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 169222144

約数和(自身を除く): 88132716

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 103, 124, 206, 217, 412, 434, 721, 868, 907, 1442, 1814, 2884, 3193, 3628, 6349, 6386, 12698, 12772, 22351, 25396, 28117, 44702, 56234, 89404, 93421, 112468, 186842, 196819, 373684, 393638, 653947, 787276, 1307894, 2615788, 2896051, 5792102, 11584204, 20272357, 40544714, 81089428]

約数ペア:

[(1, 81089428), (2, 40544714), (4, 20272357), (7, 11584204), (14, 5792102), (28, 2896051), (31, 2615788), (62, 1307894), (103, 787276), (124, 653947), (206, 393638), (217, 373684), (412, 196819), (434, 186842), (721, 112468), (868, 93421), (907, 89404), (1442, 56234), (1814, 44702), (2884, 28117), (3193, 25396), (3628, 22351), (6349, 12772), (6386, 12698)]