72145983

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1$

素因数の和:2036

約数の個数: 48

約数和(自身を含む): 126913920

約数和(自身を除く): 54767937

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 91, 133, 147, 247, 273, 399, 637, 741, 931, 1729, 1911, 1987, 2793, 5187, 5961, 12103, 13909, 25831, 36309, 37753, 41727, 77493, 97363, 113259, 180817, 264271, 292089, 490789, 542451, 792813, 1265719, 1472367, 1849897, 3435523, 3797157, 5549691, 10306569, 24048661, 72145983]

約数ペア:

[(1, 72145983), (3, 24048661), (7, 10306569), (13, 5549691), (19, 3797157), (21, 3435523), (39, 1849897), (49, 1472367), (57, 1265719), (91, 792813), (133, 542451), (147, 490789), (247, 292089), (273, 264271), (399, 180817), (637, 113259), (741, 97363), (931, 77493), (1729, 41727), (1911, 37753), (1987, 36309), (2793, 25831), (5187, 13909), (5961, 12103)]