20865436435

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{61027}}^1$

素因数の和:61171

約数の個数: 32

約数和(自身を含む): 27242899200

約数和(自身を除く): 6377462765

約数列:

[1, 5, 19, 59, 61, 95, 295, 305, 1121, 1159, 3599, 5605, 5795, 17995, 61027, 68381, 305135, 341905, 1159513, 3600593, 3722647, 5797565, 18002965, 18613235, 68411267, 70730293, 219636173, 342056335, 353651465, 1098180865, 4173087287, 20865436435]

約数ペア:

[(1, 20865436435), (5, 4173087287), (19, 1098180865), (59, 353651465), (61, 342056335), (95, 219636173), (295, 70730293), (305, 68411267), (1121, 18613235), (1159, 18002965), (3599, 5797565), (5605, 3722647), (5795, 3600593), (17995, 1159513), (61027, 341905), (68381, 305135)]