66724640

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4129}}^1$

素因数の和:4245

約数の個数: 48

約数和(自身を含む): 159236280

約数和(自身を除く): 92511640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 4129, 8080, 8258, 16160, 16516, 20645, 33032, 41290, 66064, 82580, 132128, 165160, 330320, 417029, 660640, 834058, 1668116, 2085145, 3336232, 4170290, 6672464, 8340580, 13344928, 16681160, 33362320, 66724640]

約数ペア:

[(1, 66724640), (2, 33362320), (4, 16681160), (5, 13344928), (8, 8340580), (10, 6672464), (16, 4170290), (20, 3336232), (32, 2085145), (40, 1668116), (80, 834058), (101, 660640), (160, 417029), (202, 330320), (404, 165160), (505, 132128), (808, 82580), (1010, 66064), (1616, 41290), (2020, 33032), (3232, 20645), (4040, 16516), (4129, 16160), (8080, 8258)]