19489851650

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{253609}}^1$

素因数の和:253703

約数の個数: 48

約数和(自身を含む): 38208882600

約数和(自身を除く): 18719030950

約数列:

[1, 2, 5, 10, 25, 29, 50, 53, 58, 106, 145, 265, 290, 530, 725, 1325, 1450, 1537, 2650, 3074, 7685, 15370, 38425, 76850, 253609, 507218, 1268045, 2536090, 6340225, 7354661, 12680450, 13441277, 14709322, 26882554, 36773305, 67206385, 73546610, 134412770, 183866525, 336031925, 367733050, 389797033, 672063850, 779594066, 1948985165, 3897970330, 9744925825, 19489851650]

約数ペア:

[(1, 19489851650), (2, 9744925825), (5, 3897970330), (10, 1948985165), (25, 779594066), (29, 672063850), (50, 389797033), (53, 367733050), (58, 336031925), (106, 183866525), (145, 134412770), (265, 73546610), (290, 67206385), (530, 36773305), (725, 26882554), (1325, 14709322), (1450, 13441277), (1537, 12680450), (2650, 7354661), (3074, 6340225), (7685, 2536090), (15370, 1268045), (38425, 507218), (76850, 253609)]