28221935

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 43223040

約数和(自身を除く): 15001105

約数列:

[1, 5, 7, 19, 31, 35, 37, 95, 133, 155, 185, 217, 259, 589, 665, 703, 1085, 1147, 1295, 1369, 2945, 3515, 4123, 4921, 5735, 6845, 8029, 9583, 20615, 21793, 24605, 26011, 40145, 42439, 47915, 108965, 130055, 152551, 182077, 212195, 297073, 762755, 806341, 910385, 1485365, 4031705, 5644387, 28221935]

約数ペア:

[(1, 28221935), (5, 5644387), (7, 4031705), (19, 1485365), (31, 910385), (35, 806341), (37, 762755), (95, 297073), (133, 212195), (155, 182077), (185, 152551), (217, 130055), (259, 108965), (589, 47915), (665, 42439), (703, 40145), (1085, 26011), (1147, 24605), (1295, 21793), (1369, 20615), (2945, 9583), (3515, 8029), (4123, 6845), (4921, 5735)]