64203080

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{7607}}^1$

素因数の和:7829

約数の個数: 32

約数和(自身を含む): 145160640

約数和(自身を除く): 80957560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 7607, 8440, 15214, 30428, 38035, 60856, 76070, 152140, 304280, 1605077, 3210154, 6420308, 8025385, 12840616, 16050770, 32101540, 64203080]

約数ペア:

[(1, 64203080), (2, 32101540), (4, 16050770), (5, 12840616), (8, 8025385), (10, 6420308), (20, 3210154), (40, 1605077), (211, 304280), (422, 152140), (844, 76070), (1055, 60856), (1688, 38035), (2110, 30428), (4220, 15214), (7607, 8440)]