207640816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{797}}^1\times {\mathrm{857}}^1$

素因数の和:1681

約数の個数: 40

約数和(自身を含む): 424504080

約数和(自身を除く): 216863264

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 797, 857, 1594, 1714, 3188, 3428, 6376, 6856, 12752, 13712, 15143, 16283, 30286, 32566, 60572, 65132, 121144, 130264, 242288, 260528, 683029, 1366058, 2732116, 5464232, 10928464, 12977551, 25955102, 51910204, 103820408, 207640816]

約数ペア:

[(1, 207640816), (2, 103820408), (4, 51910204), (8, 25955102), (16, 12977551), (19, 10928464), (38, 5464232), (76, 2732116), (152, 1366058), (304, 683029), (797, 260528), (857, 242288), (1594, 130264), (1714, 121144), (3188, 65132), (3428, 60572), (6376, 32566), (6856, 30286), (12752, 16283), (13712, 15143)]