20454995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 8285101

約数列:

[1, 5, 11, 17, 55, 85, 131, 167, 187, 655, 835, 935, 1441, 1837, 2227, 2839, 7205, 9185, 11135, 14195, 21877, 24497, 31229, 109385, 122485, 156145, 240647, 371909, 1203235, 1859545, 4090999, 20454995]

約数ペア:

[(1, 20454995), (5, 4090999), (11, 1859545), (17, 1203235), (55, 371909), (85, 240647), (131, 156145), (167, 122485), (187, 109385), (655, 31229), (835, 24497), (935, 21877), (1441, 14195), (1837, 11135), (2227, 9185), (2839, 7205)]