16778575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 24935904

約数和(自身を除く): 8157329

約数列:

[1, 5, 11, 17, 25, 37, 55, 85, 97, 185, 187, 275, 407, 425, 485, 629, 925, 935, 1067, 1649, 2035, 2425, 3145, 3589, 4675, 5335, 6919, 8245, 10175, 15725, 17945, 18139, 26675, 34595, 39479, 41225, 61013, 89725, 90695, 172975, 197395, 305065, 453475, 671143, 986975, 1525325, 3355715, 16778575]

約数ペア:

[(1, 16778575), (5, 3355715), (11, 1525325), (17, 986975), (25, 671143), (37, 453475), (55, 305065), (85, 197395), (97, 172975), (185, 90695), (187, 89725), (275, 61013), (407, 41225), (425, 39479), (485, 34595), (629, 26675), (925, 18139), (935, 17945), (1067, 15725), (1649, 10175), (2035, 8245), (2425, 6919), (3145, 5335), (3589, 4675)]