8460340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 21115080

約数和(自身を除く): 12654740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 97, 98, 140, 178, 194, 196, 245, 356, 388, 445, 485, 490, 623, 679, 890, 970, 980, 1246, 1358, 1780, 1940, 2492, 2716, 3115, 3395, 4361, 4753, 6230, 6790, 8633, 8722, 9506, 12460, 13580, 17266, 17444, 19012, 21805, 23765, 34532, 43165, 43610, 47530, 60431, 86330, 87220, 95060, 120862, 172660, 241724, 302155, 423017, 604310, 846034, 1208620, 1692068, 2115085, 4230170, 8460340]

約数ペア:

[(1, 8460340), (2, 4230170), (4, 2115085), (5, 1692068), (7, 1208620), (10, 846034), (14, 604310), (20, 423017), (28, 302155), (35, 241724), (49, 172660), (70, 120862), (89, 95060), (97, 87220), (98, 86330), (140, 60431), (178, 47530), (194, 43610), (196, 43165), (245, 34532), (356, 23765), (388, 21805), (445, 19012), (485, 17444), (490, 17266), (623, 13580), (679, 12460), (890, 9506), (970, 8722), (980, 8633), (1246, 6790), (1358, 6230), (1780, 4753), (1940, 4361), (2492, 3395), (2716, 3115)]