20123202005

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{303907}}^1$

素因数の和:303989

約数の個数: 32

約数和(自身を含む): 27570533760

約数和(自身を除く): 7447331755

約数列:

[1, 5, 17, 19, 41, 85, 95, 205, 323, 697, 779, 1615, 3485, 3895, 13243, 66215, 303907, 1519535, 5166419, 5774233, 12460187, 25832095, 28871165, 62300935, 98161961, 211823179, 236743553, 490809805, 1059115895, 1183717765, 4024640401, 20123202005]

約数ペア:

[(1, 20123202005), (5, 4024640401), (17, 1183717765), (19, 1059115895), (41, 490809805), (85, 236743553), (95, 211823179), (205, 98161961), (323, 62300935), (697, 28871165), (779, 25832095), (1615, 12460187), (3485, 5774233), (3895, 5166419), (13243, 1519535), (66215, 303907)]