208758880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:341

約数の個数: 144

約数和(自身を含む): 557438112

約数和(自身を除く): 348679232

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 80, 82, 88, 110, 121, 160, 164, 176, 205, 220, 242, 263, 328, 352, 410, 440, 451, 484, 526, 605, 656, 820, 880, 902, 968, 1052, 1210, 1312, 1315, 1640, 1760, 1804, 1936, 2104, 2255, 2420, 2630, 2893, 3280, 3608, 3872, 4208, 4510, 4840, 4961, 5260, 5786, 6560, 7216, 8416, 9020, 9680, 9922, 10520, 10783, 11572, 14432, 14465, 18040, 19360, 19844, 21040, 21566, 23144, 24805, 28930, 31823, 36080, 39688, 42080, 43132, 46288, 49610, 53915, 57860, 63646, 72160, 79376, 86264, 92576, 99220, 107830, 115720, 118613, 127292, 158752, 159115, 172528, 198440, 215660, 231440, 237226, 254584, 318230, 345056, 396880, 431320, 462880, 474452, 509168, 593065, 636460, 793760, 862640, 948904, 1018336, 1186130, 1272920, 1304743, 1725280, 1897808, 2372260, 2545840, 2609486, 3795616, 4744520, 5091680, 5218972, 6523715, 9489040, 10437944, 13047430, 18978080, 20875888, 26094860, 41751776, 52189720, 104379440, 208758880]

約数ペア:

[(1, 208758880), (2, 104379440), (4, 52189720), (5, 41751776), (8, 26094860), (10, 20875888), (11, 18978080), (16, 13047430), (20, 10437944), (22, 9489040), (32, 6523715), (40, 5218972), (41, 5091680), (44, 4744520), (55, 3795616), (80, 2609486), (82, 2545840), (88, 2372260), (110, 1897808), (121, 1725280), (160, 1304743), (164, 1272920), (176, 1186130), (205, 1018336), (220, 948904), (242, 862640), (263, 793760), (328, 636460), (352, 593065), (410, 509168), (440, 474452), (451, 462880), (484, 431320), (526, 396880), (605, 345056), (656, 318230), (820, 254584), (880, 237226), (902, 231440), (968, 215660), (1052, 198440), (1210, 172528), (1312, 159115), (1315, 158752), (1640, 127292), (1760, 118613), (1804, 115720), (1936, 107830), (2104, 99220), (2255, 92576), (2420, 86264), (2630, 79376), (2893, 72160), (3280, 63646), (3608, 57860), (3872, 53915), (4208, 49610), (4510, 46288), (4840, 43132), (4961, 42080), (5260, 39688), (5786, 36080), (6560, 31823), (7216, 28930), (8416, 24805), (9020, 23144), (9680, 21566), (9922, 21040), (10520, 19844), (10783, 19360), (11572, 18040), (14432, 14465)]