71380309

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 99743616

約数和(自身を除く): 28363307

約数列:

[1, 7, 11, 13, 49, 61, 77, 91, 143, 167, 427, 539, 637, 671, 793, 1001, 1169, 1837, 2171, 2989, 4697, 5551, 7007, 8183, 8723, 10187, 12859, 15197, 23881, 32879, 38857, 61061, 71309, 90013, 106379, 112057, 132431, 167167, 427427, 499163, 784399, 927017, 1170169, 1456741, 5490793, 6489119, 10197187, 71380309]

約数ペア:

[(1, 71380309), (7, 10197187), (11, 6489119), (13, 5490793), (49, 1456741), (61, 1170169), (77, 927017), (91, 784399), (143, 499163), (167, 427427), (427, 167167), (539, 132431), (637, 112057), (671, 106379), (793, 90013), (1001, 71309), (1169, 61061), (1837, 38857), (2171, 32879), (2989, 23881), (4697, 15197), (5551, 12859), (7007, 10187), (8183, 8723)]