81840484

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{20899}}^1$

素因数の和:21003

約数の個数: 24

約数和(自身を含む): 158004000

約数和(自身を除く): 76163516

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 20899, 41798, 83596, 229889, 459778, 919556, 1860011, 3720022, 7440044, 20460121, 40920242, 81840484]

約数ペア:

[(1, 81840484), (2, 40920242), (4, 20460121), (11, 7440044), (22, 3720022), (44, 1860011), (89, 919556), (178, 459778), (356, 229889), (979, 83596), (1958, 41798), (3916, 20899)]