3280540

素因数分解:

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

素因数の和:214

約数の個数: 48

約数和(自身を含む): 7408800

約数和(自身を除く): 4128260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 97, 178, 190, 194, 356, 380, 388, 445, 485, 890, 970, 1691, 1780, 1843, 1940, 3382, 3686, 6764, 7372, 8455, 8633, 9215, 16910, 17266, 18430, 33820, 34532, 36860, 43165, 86330, 164027, 172660, 328054, 656108, 820135, 1640270, 3280540]

約数ペア:

[(1, 3280540), (2, 1640270), (4, 820135), (5, 656108), (10, 328054), (19, 172660), (20, 164027), (38, 86330), (76, 43165), (89, 36860), (95, 34532), (97, 33820), (178, 18430), (190, 17266), (194, 16910), (356, 9215), (380, 8633), (388, 8455), (445, 7372), (485, 6764), (890, 3686), (970, 3382), (1691, 1940), (1780, 1843)]