203129380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{1489}}^1$

素因数の和:1876

約数の個数: 48

約数和(自身を含む): 450576000

約数和(自身を除く): 247446620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 359, 380, 718, 1436, 1489, 1795, 2978, 3590, 5956, 6821, 7180, 7445, 13642, 14890, 27284, 28291, 29780, 34105, 56582, 68210, 113164, 136420, 141455, 282910, 534551, 565820, 1069102, 2138204, 2672755, 5345510, 10156469, 10691020, 20312938, 40625876, 50782345, 101564690, 203129380]

約数ペア:

[(1, 203129380), (2, 101564690), (4, 50782345), (5, 40625876), (10, 20312938), (19, 10691020), (20, 10156469), (38, 5345510), (76, 2672755), (95, 2138204), (190, 1069102), (359, 565820), (380, 534551), (718, 282910), (1436, 141455), (1489, 136420), (1795, 113164), (2978, 68210), (3590, 56582), (5956, 34105), (6821, 29780), (7180, 28291), (7445, 27284), (13642, 14890)]