208048640

素因数分解:

$2^9\times 5^1\times {\mathrm{181}}^1\times {\mathrm{449}}^1$

素因数の和:653

約数の個数: 80

約数和(自身を含む): 502702200

約数和(自身を除く): 294653560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 256, 320, 362, 449, 512, 640, 724, 898, 905, 1280, 1448, 1796, 1810, 2245, 2560, 2896, 3592, 3620, 4490, 5792, 7184, 7240, 8980, 11584, 14368, 14480, 17960, 23168, 28736, 28960, 35920, 46336, 57472, 57920, 71840, 81269, 92672, 114944, 115840, 143680, 162538, 229888, 231680, 287360, 325076, 406345, 463360, 574720, 650152, 812690, 1149440, 1300304, 1625380, 2600608, 3250760, 5201216, 6501520, 10402432, 13003040, 20804864, 26006080, 41609728, 52012160, 104024320, 208048640]

約数ペア:

[(1, 208048640), (2, 104024320), (4, 52012160), (5, 41609728), (8, 26006080), (10, 20804864), (16, 13003040), (20, 10402432), (32, 6501520), (40, 5201216), (64, 3250760), (80, 2600608), (128, 1625380), (160, 1300304), (181, 1149440), (256, 812690), (320, 650152), (362, 574720), (449, 463360), (512, 406345), (640, 325076), (724, 287360), (898, 231680), (905, 229888), (1280, 162538), (1448, 143680), (1796, 115840), (1810, 114944), (2245, 92672), (2560, 81269), (2896, 71840), (3592, 57920), (3620, 57472), (4490, 46336), (5792, 35920), (7184, 28960), (7240, 28736), (8980, 23168), (11584, 17960), (14368, 14480)]