16402700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 38278800

約数和(自身を除く): 21876100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 89, 95, 97, 100, 178, 190, 194, 356, 380, 388, 445, 475, 485, 890, 950, 970, 1691, 1780, 1843, 1900, 1940, 2225, 2425, 3382, 3686, 4450, 4850, 6764, 7372, 8455, 8633, 8900, 9215, 9700, 16910, 17266, 18430, 33820, 34532, 36860, 42275, 43165, 46075, 84550, 86330, 92150, 164027, 169100, 172660, 184300, 215825, 328054, 431650, 656108, 820135, 863300, 1640270, 3280540, 4100675, 8201350, 16402700]

約数ペア:

[(1, 16402700), (2, 8201350), (4, 4100675), (5, 3280540), (10, 1640270), (19, 863300), (20, 820135), (25, 656108), (38, 431650), (50, 328054), (76, 215825), (89, 184300), (95, 172660), (97, 169100), (100, 164027), (178, 92150), (190, 86330), (194, 84550), (356, 46075), (380, 43165), (388, 42275), (445, 36860), (475, 34532), (485, 33820), (890, 18430), (950, 17266), (970, 16910), (1691, 9700), (1780, 9215), (1843, 8900), (1900, 8633), (1940, 8455), (2225, 7372), (2425, 6764), (3382, 4850), (3686, 4450)]