128284600

素因数分解:

$2^3\times 5^2\times {\mathrm{89}}^1\times {\mathrm{7207}}^1$

素因数の和:7312

約数の個数: 48

約数和(自身を含む): 301654800

約数和(自身を除く): 173370200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 178, 200, 356, 445, 712, 890, 1780, 2225, 3560, 4450, 7207, 8900, 14414, 17800, 28828, 36035, 57656, 72070, 144140, 180175, 288280, 360350, 641423, 720700, 1282846, 1441400, 2565692, 3207115, 5131384, 6414230, 12828460, 16035575, 25656920, 32071150, 64142300, 128284600]

約数ペア:

[(1, 128284600), (2, 64142300), (4, 32071150), (5, 25656920), (8, 16035575), (10, 12828460), (20, 6414230), (25, 5131384), (40, 3207115), (50, 2565692), (89, 1441400), (100, 1282846), (178, 720700), (200, 641423), (356, 360350), (445, 288280), (712, 180175), (890, 144140), (1780, 72070), (2225, 57656), (3560, 36035), (4450, 28828), (7207, 17800), (8900, 14414)]