217861984

素因数分解:

$2^5\times {\mathrm{59}}^1\times {\mathrm{257}}^1\times {\mathrm{449}}^1$

素因数の和:775

約数の個数: 48

約数和(自身を含む): 438858000

約数和(自身を除く): 220996016

約数列:

[1, 2, 4, 8, 16, 32, 59, 118, 236, 257, 449, 472, 514, 898, 944, 1028, 1796, 1888, 2056, 3592, 4112, 7184, 8224, 14368, 15163, 26491, 30326, 52982, 60652, 105964, 115393, 121304, 211928, 230786, 242608, 423856, 461572, 485216, 847712, 923144, 1846288, 3692576, 6808187, 13616374, 27232748, 54465496, 108930992, 217861984]

約数ペア:

[(1, 217861984), (2, 108930992), (4, 54465496), (8, 27232748), (16, 13616374), (32, 6808187), (59, 3692576), (118, 1846288), (236, 923144), (257, 847712), (449, 485216), (472, 461572), (514, 423856), (898, 242608), (944, 230786), (1028, 211928), (1796, 121304), (1888, 115393), (2056, 105964), (3592, 60652), (4112, 52982), (7184, 30326), (8224, 26491), (14368, 15163)]