19528060520

素因数分解:

$2^3\times 5^1\times {\mathrm{1901}}^1\times {\mathrm{256813}}^1$

素因数の和:258725

約数の個数: 32

約数和(自身を含む): 43961420520

約数和(自身を除く): 24433360000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1901, 3802, 7604, 9505, 15208, 19010, 38020, 76040, 256813, 513626, 1027252, 1284065, 2054504, 2568130, 5136260, 10272520, 488201513, 976403026, 1952806052, 2441007565, 3905612104, 4882015130, 9764030260, 19528060520]

約数ペア:

[(1, 19528060520), (2, 9764030260), (4, 4882015130), (5, 3905612104), (8, 2441007565), (10, 1952806052), (20, 976403026), (40, 488201513), (1901, 10272520), (3802, 5136260), (7604, 2568130), (9505, 2054504), (15208, 1284065), (19010, 1027252), (38020, 513626), (76040, 256813)]