30431863

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 42219520

約数和(自身を除く): 11787657

約数列:

[1, 7, 11, 19, 31, 61, 77, 121, 133, 209, 217, 341, 427, 589, 671, 847, 1159, 1463, 1891, 2299, 2387, 3751, 4123, 4697, 6479, 7381, 8113, 12749, 13237, 16093, 20801, 26257, 35929, 45353, 51667, 71269, 89243, 140239, 145607, 228811, 251503, 395219, 498883, 981673, 1601677, 2766533, 4347409, 30431863]

約数ペア:

[(1, 30431863), (7, 4347409), (11, 2766533), (19, 1601677), (31, 981673), (61, 498883), (77, 395219), (121, 251503), (133, 228811), (209, 145607), (217, 140239), (341, 89243), (427, 71269), (589, 51667), (671, 45353), (847, 35929), (1159, 26257), (1463, 20801), (1891, 16093), (2299, 13237), (2387, 12749), (3751, 8113), (4123, 7381), (4697, 6479)]