20719685

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{359}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 9762235

約数列:

[1, 5, 7, 17, 35, 85, 97, 119, 359, 485, 595, 679, 1649, 1795, 2513, 3395, 6103, 8245, 11543, 12565, 30515, 34823, 42721, 57715, 174115, 213605, 243761, 591991, 1218805, 2959955, 4143937, 20719685]

約数ペア:

[(1, 20719685), (5, 4143937), (7, 2959955), (17, 1218805), (35, 591991), (85, 243761), (97, 213605), (119, 174115), (359, 57715), (485, 42721), (595, 34823), (679, 30515), (1649, 12565), (1795, 11543), (2513, 8245), (3395, 6103)]