64357940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{659}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 143035200

約数和(自身を除く): 78677260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 257, 380, 514, 659, 1028, 1285, 1318, 2570, 2636, 3295, 4883, 5140, 6590, 9766, 12521, 13180, 19532, 24415, 25042, 48830, 50084, 62605, 97660, 125210, 169363, 250420, 338726, 677452, 846815, 1693630, 3217897, 3387260, 6435794, 12871588, 16089485, 32178970, 64357940]

約数ペア:

[(1, 64357940), (2, 32178970), (4, 16089485), (5, 12871588), (10, 6435794), (19, 3387260), (20, 3217897), (38, 1693630), (76, 846815), (95, 677452), (190, 338726), (257, 250420), (380, 169363), (514, 125210), (659, 97660), (1028, 62605), (1285, 50084), (1318, 48830), (2570, 25042), (2636, 24415), (3295, 19532), (4883, 13180), (5140, 12521), (6590, 9766)]