1978650980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{467}}^1\times {\mathrm{5167}}^1$

素因数の和:5684

約数の個数: 48

約数和(自身を含む): 4266452736

約数和(自身を除く): 2287801756

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 467, 820, 934, 1868, 2335, 4670, 5167, 9340, 10334, 19147, 20668, 25835, 38294, 51670, 76588, 95735, 103340, 191470, 211847, 382940, 423694, 847388, 1059235, 2118470, 2412989, 4236940, 4825978, 9651956, 12064945, 24129890, 48259780, 98932549, 197865098, 395730196, 494662745, 989325490, 1978650980]

約数ペア:

[(1, 1978650980), (2, 989325490), (4, 494662745), (5, 395730196), (10, 197865098), (20, 98932549), (41, 48259780), (82, 24129890), (164, 12064945), (205, 9651956), (410, 4825978), (467, 4236940), (820, 2412989), (934, 2118470), (1868, 1059235), (2335, 847388), (4670, 423694), (5167, 382940), (9340, 211847), (10334, 191470), (19147, 103340), (20668, 95735), (25835, 76588), (38294, 51670)]