18254195

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 23593680

約数和(自身を除く): 5339485

約数列:

[1, 5, 29, 31, 131, 145, 155, 655, 899, 961, 3799, 4061, 4495, 4805, 18995, 20305, 27869, 117769, 125891, 139345, 588845, 629455, 3650839, 18254195]

約数ペア:

[(1, 18254195), (5, 3650839), (29, 629455), (31, 588845), (131, 139345), (145, 125891), (155, 117769), (655, 27869), (899, 20305), (961, 18995), (3799, 4805), (4061, 4495)]