31780595

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 51480576

約数和(自身を除く): 19699981

約数列:

[1, 5, 7, 11, 23, 35, 37, 55, 77, 97, 115, 161, 185, 253, 259, 385, 407, 485, 679, 805, 851, 1067, 1265, 1295, 1771, 2035, 2231, 2849, 3395, 3589, 4255, 5335, 5957, 7469, 8855, 9361, 11155, 14245, 15617, 17945, 24541, 25123, 29785, 37345, 39479, 46805, 65527, 78085, 82547, 122705, 125615, 171787, 197395, 276353, 327635, 412735, 577829, 858935, 908017, 1381765, 2889145, 4540085, 6356119, 31780595]

約数ペア:

[(1, 31780595), (5, 6356119), (7, 4540085), (11, 2889145), (23, 1381765), (35, 908017), (37, 858935), (55, 577829), (77, 412735), (97, 327635), (115, 276353), (161, 197395), (185, 171787), (253, 125615), (259, 122705), (385, 82547), (407, 78085), (485, 65527), (679, 46805), (805, 39479), (851, 37345), (1067, 29785), (1265, 25123), (1295, 24541), (1771, 17945), (2035, 15617), (2231, 14245), (2849, 11155), (3395, 9361), (3589, 8855), (4255, 7469), (5335, 5957)]