18391322525

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{1789}}^1$

素因数の和:2046

約数の個数: 48

約数和(自身を含む): 23849158080

約数和(自身を除く): 5457835555

約数列:

[1, 5, 25, 43, 73, 131, 215, 365, 655, 1075, 1789, 1825, 3139, 3275, 5633, 8945, 9563, 15695, 28165, 44725, 47815, 76927, 78475, 130597, 140825, 234359, 239075, 384635, 411209, 652985, 1171795, 1923175, 2056045, 3264925, 5615671, 5858975, 10077437, 10280225, 17108207, 28078355, 50387185, 85541035, 140391775, 251935925, 427705175, 735652901, 3678264505, 18391322525]

約数ペア:

[(1, 18391322525), (5, 3678264505), (25, 735652901), (43, 427705175), (73, 251935925), (131, 140391775), (215, 85541035), (365, 50387185), (655, 28078355), (1075, 17108207), (1789, 10280225), (1825, 10077437), (3139, 5858975), (3275, 5615671), (5633, 3264925), (8945, 2056045), (9563, 1923175), (15695, 1171795), (28165, 652985), (44725, 411209), (47815, 384635), (76927, 239075), (78475, 234359), (130597, 140825)]