128817788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{373}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 253338624

約数和(自身を除く): 124520836

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 167, 188, 334, 373, 517, 668, 746, 1034, 1492, 1837, 2068, 3674, 4103, 7348, 7849, 8206, 15698, 16412, 17531, 31396, 35062, 62291, 70124, 86339, 124582, 172678, 192841, 249164, 345356, 385682, 685201, 771364, 1370402, 2740804, 2927677, 5855354, 11710708, 32204447, 64408894, 128817788]

約数ペア:

[(1, 128817788), (2, 64408894), (4, 32204447), (11, 11710708), (22, 5855354), (44, 2927677), (47, 2740804), (94, 1370402), (167, 771364), (188, 685201), (334, 385682), (373, 345356), (517, 249164), (668, 192841), (746, 172678), (1034, 124582), (1492, 86339), (1837, 70124), (2068, 62291), (3674, 35062), (4103, 31396), (7348, 17531), (7849, 16412), (8206, 15698)]