72344540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{419}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 155584800

約数和(自身を除く): 83240260

約数列:

[1, 2, 4, 5, 10, 20, 89, 97, 178, 194, 356, 388, 419, 445, 485, 838, 890, 970, 1676, 1780, 1940, 2095, 4190, 8380, 8633, 17266, 34532, 37291, 40643, 43165, 74582, 81286, 86330, 149164, 162572, 172660, 186455, 203215, 372910, 406430, 745820, 812860, 3617227, 7234454, 14468908, 18086135, 36172270, 72344540]

約数ペア:

[(1, 72344540), (2, 36172270), (4, 18086135), (5, 14468908), (10, 7234454), (20, 3617227), (89, 812860), (97, 745820), (178, 406430), (194, 372910), (356, 203215), (388, 186455), (419, 172660), (445, 162572), (485, 149164), (838, 86330), (890, 81286), (970, 74582), (1676, 43165), (1780, 40643), (1940, 37291), (2095, 34532), (4190, 17266), (8380, 8633)]