81276545

素因数分解:

$5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{2113}}^1$

素因数の和:2289

約数の個数: 24

約数和(自身を含む): 114232104

約数和(自身を除く): 32955559

約数列:

[1, 5, 7, 35, 49, 157, 245, 785, 1099, 2113, 5495, 7693, 10565, 14791, 38465, 73955, 103537, 331741, 517685, 1658705, 2322187, 11610935, 16255309, 81276545]

約数ペア:

[(1, 81276545), (5, 16255309), (7, 11610935), (35, 2322187), (49, 1658705), (157, 517685), (245, 331741), (785, 103537), (1099, 73955), (2113, 38465), (5495, 14791), (7693, 10565)]