2887160

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:911

約数の個数: 32

約数和(自身を含む): 6577200

約数和(自身を除く): 3690040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 811, 890, 1622, 1780, 3244, 3560, 4055, 6488, 8110, 16220, 32440, 72179, 144358, 288716, 360895, 577432, 721790, 1443580, 2887160]

約数ペア:

[(1, 2887160), (2, 1443580), (4, 721790), (5, 577432), (8, 360895), (10, 288716), (20, 144358), (40, 72179), (89, 32440), (178, 16220), (356, 8110), (445, 6488), (712, 4055), (811, 3560), (890, 3244), (1622, 1780)]