2649896680

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{744353}}^1$

素因数の和:744453

約数の個数: 32

約数和(自身を含む): 6029267400

約数和(自身を除く): 3379370720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 744353, 1488706, 2977412, 3721765, 5954824, 7443530, 14887060, 29774120, 66247417, 132494834, 264989668, 331237085, 529979336, 662474170, 1324948340, 2649896680]

約数ペア:

[(1, 2649896680), (2, 1324948340), (4, 662474170), (5, 529979336), (8, 331237085), (10, 264989668), (20, 132494834), (40, 66247417), (89, 29774120), (178, 14887060), (356, 7443530), (445, 5954824), (712, 3721765), (890, 2977412), (1780, 1488706), (3560, 744353)]