9150980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 20003760

約数和(自身を除く): 10852780

約数列:

[1, 2, 4, 5, 10, 20, 53, 89, 97, 106, 178, 194, 212, 265, 356, 388, 445, 485, 530, 890, 970, 1060, 1780, 1940, 4717, 5141, 8633, 9434, 10282, 17266, 18868, 20564, 23585, 25705, 34532, 43165, 47170, 51410, 86330, 94340, 102820, 172660, 457549, 915098, 1830196, 2287745, 4575490, 9150980]

約数ペア:

[(1, 9150980), (2, 4575490), (4, 2287745), (5, 1830196), (10, 915098), (20, 457549), (53, 172660), (89, 102820), (97, 94340), (106, 86330), (178, 51410), (194, 47170), (212, 43165), (265, 34532), (356, 25705), (388, 23585), (445, 20564), (485, 18868), (530, 17266), (890, 10282), (970, 9434), (1060, 8633), (1780, 5141), (1940, 4717)]