81907715

素因数分解:

$5^1\times {\mathrm{23}}^2\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:403

約数の個数: 24

約数和(自身を含む): 103919760

約数和(自身を除く): 22012045

約数列:

[1, 5, 23, 115, 173, 179, 529, 865, 895, 2645, 3979, 4117, 19895, 20585, 30967, 91517, 94691, 154835, 457585, 473455, 712241, 3561205, 16381543, 81907715]

約数ペア:

[(1, 81907715), (5, 16381543), (23, 3561205), (115, 712241), (173, 473455), (179, 457585), (529, 154835), (865, 94691), (895, 91517), (2645, 30967), (3979, 20585), (4117, 19895)]