21609200

素因数分解:

$2^4\times 5^2\times {\mathrm{89}}^1\times {\mathrm{607}}^1$

素因数の和:714

約数の個数: 60

約数和(自身を含む): 52585920

約数和(自身を除く): 30976720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 89, 100, 178, 200, 356, 400, 445, 607, 712, 890, 1214, 1424, 1780, 2225, 2428, 3035, 3560, 4450, 4856, 6070, 7120, 8900, 9712, 12140, 15175, 17800, 24280, 30350, 35600, 48560, 54023, 60700, 108046, 121400, 216092, 242800, 270115, 432184, 540230, 864368, 1080460, 1350575, 2160920, 2701150, 4321840, 5402300, 10804600, 21609200]

約数ペア:

[(1, 21609200), (2, 10804600), (4, 5402300), (5, 4321840), (8, 2701150), (10, 2160920), (16, 1350575), (20, 1080460), (25, 864368), (40, 540230), (50, 432184), (80, 270115), (89, 242800), (100, 216092), (178, 121400), (200, 108046), (356, 60700), (400, 54023), (445, 48560), (607, 35600), (712, 30350), (890, 24280), (1214, 17800), (1424, 15175), (1780, 12140), (2225, 9712), (2428, 8900), (3035, 7120), (3560, 6070), (4450, 4856)]