40121378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:794

約数の個数: 32

約数和(自身を含む): 68636160

約数和(自身を除く): 28514782

約数列:

[1, 2, 11, 22, 31, 62, 89, 178, 341, 661, 682, 979, 1322, 1958, 2759, 5518, 7271, 14542, 20491, 30349, 40982, 58829, 60698, 117658, 225401, 450802, 647119, 1294238, 1823699, 3647398, 20060689, 40121378]

約数ペア:

[(1, 40121378), (2, 20060689), (11, 3647398), (22, 1823699), (31, 1294238), (62, 647119), (89, 450802), (178, 225401), (341, 117658), (661, 60698), (682, 58829), (979, 40982), (1322, 30349), (1958, 20491), (2759, 14542), (5518, 7271)]