1641160

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{461}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 3742200

約数和(自身を除く): 2101040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 461, 712, 890, 922, 1780, 1844, 2305, 3560, 3688, 4610, 9220, 18440, 41029, 82058, 164116, 205145, 328232, 410290, 820580, 1641160]

約数ペア:

[(1, 1641160), (2, 820580), (4, 410290), (5, 328232), (8, 205145), (10, 164116), (20, 82058), (40, 41029), (89, 18440), (178, 9220), (356, 4610), (445, 3688), (461, 3560), (712, 2305), (890, 1844), (922, 1780)]