81239662

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{383}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 141926400

約数和(自身を除く): 60686738

約数列:

[1, 2, 7, 14, 109, 139, 218, 278, 383, 763, 766, 973, 1526, 1946, 2681, 5362, 15151, 30302, 41747, 53237, 83494, 106057, 106474, 212114, 292229, 372659, 584458, 745318, 5802833, 11605666, 40619831, 81239662]

約数ペア:

[(1, 81239662), (2, 40619831), (7, 11605666), (14, 5802833), (109, 745318), (139, 584458), (218, 372659), (278, 292229), (383, 212114), (763, 106474), (766, 106057), (973, 83494), (1526, 53237), (1946, 41747), (2681, 30302), (5362, 15151)]