491489680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{19259}}^1$

素因数の和:19312

約数の個数: 80

約数和(自身を含む): 1289649600

約数和(自身を除く): 798159920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 880, 1160, 1276, 1595, 2320, 2552, 3190, 5104, 6380, 12760, 19259, 25520, 38518, 77036, 96295, 154072, 192590, 211849, 308144, 385180, 423698, 558511, 770360, 847396, 1059245, 1117022, 1540720, 1694792, 2118490, 2234044, 2792555, 3389584, 4236980, 4468088, 5585110, 6143621, 8473960, 8936176, 11170220, 12287242, 16947920, 22340440, 24574484, 30718105, 44680880, 49148968, 61436210, 98297936, 122872420, 245744840, 491489680]

約数ペア:

[(1, 491489680), (2, 245744840), (4, 122872420), (5, 98297936), (8, 61436210), (10, 49148968), (11, 44680880), (16, 30718105), (20, 24574484), (22, 22340440), (29, 16947920), (40, 12287242), (44, 11170220), (55, 8936176), (58, 8473960), (80, 6143621), (88, 5585110), (110, 4468088), (116, 4236980), (145, 3389584), (176, 2792555), (220, 2234044), (232, 2118490), (290, 1694792), (319, 1540720), (440, 1117022), (464, 1059245), (580, 847396), (638, 770360), (880, 558511), (1160, 423698), (1276, 385180), (1595, 308144), (2320, 211849), (2552, 192590), (3190, 154072), (5104, 96295), (6380, 77036), (12760, 38518), (19259, 25520)]