261036644

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{349}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 508032000

約数和(自身を除く): 246995356

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 191, 349, 356, 382, 698, 764, 979, 1396, 1958, 2101, 3839, 3916, 4202, 7678, 8404, 15356, 16999, 31061, 33998, 62122, 66659, 67996, 124244, 133318, 186989, 266636, 341671, 373978, 683342, 733249, 747956, 1366684, 1466498, 2932996, 5932651, 11865302, 23730604, 65259161, 130518322, 261036644]

約数ペア:

[(1, 261036644), (2, 130518322), (4, 65259161), (11, 23730604), (22, 11865302), (44, 5932651), (89, 2932996), (178, 1466498), (191, 1366684), (349, 747956), (356, 733249), (382, 683342), (698, 373978), (764, 341671), (979, 266636), (1396, 186989), (1958, 133318), (2101, 124244), (3839, 67996), (3916, 66659), (4202, 62122), (7678, 33998), (8404, 31061), (15356, 16999)]