39721280

素因数分解:

$2^6\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1229}}^1$

素因数の和:1347

約数の個数: 56

約数和(自身を含む): 95600520

約数和(自身を除く): 55879240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 160, 202, 320, 404, 505, 808, 1010, 1229, 1616, 2020, 2458, 3232, 4040, 4916, 6145, 6464, 8080, 9832, 12290, 16160, 19664, 24580, 32320, 39328, 49160, 78656, 98320, 124129, 196640, 248258, 393280, 496516, 620645, 993032, 1241290, 1986064, 2482580, 3972128, 4965160, 7944256, 9930320, 19860640, 39721280]

約数ペア:

[(1, 39721280), (2, 19860640), (4, 9930320), (5, 7944256), (8, 4965160), (10, 3972128), (16, 2482580), (20, 1986064), (32, 1241290), (40, 993032), (64, 620645), (80, 496516), (101, 393280), (160, 248258), (202, 196640), (320, 124129), (404, 98320), (505, 78656), (808, 49160), (1010, 39328), (1229, 32320), (1616, 24580), (2020, 19664), (2458, 16160), (3232, 12290), (4040, 9832), (4916, 8080), (6145, 6464)]