81071116

素因数分解:

$2^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{4517}}^1$

素因数の和:5169

約数の個数: 24

約数和(自身を含む): 162431136

約数和(自身を除く): 81360020

約数列:

[1, 2, 4, 7, 14, 28, 641, 1282, 2564, 4487, 4517, 8974, 9034, 17948, 18068, 31619, 63238, 126476, 2895397, 5790794, 11581588, 20267779, 40535558, 81071116]

約数ペア:

[(1, 81071116), (2, 40535558), (4, 20267779), (7, 11581588), (14, 5790794), (28, 2895397), (641, 126476), (1282, 63238), (2564, 31619), (4487, 18068), (4517, 17948), (8974, 9034)]