80139520

素因数分解:

$2^8\times 5^1\times {\mathrm{137}}^1\times {\mathrm{457}}^1$

素因数の和:615

約数の個数: 72

約数和(自身を含む): 193783464

約数和(自身を除く): 113643944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 256, 274, 320, 457, 548, 640, 685, 914, 1096, 1280, 1370, 1828, 2192, 2285, 2740, 3656, 4384, 4570, 5480, 7312, 8768, 9140, 10960, 14624, 17536, 18280, 21920, 29248, 35072, 36560, 43840, 58496, 62609, 73120, 87680, 116992, 125218, 146240, 175360, 250436, 292480, 313045, 500872, 584960, 626090, 1001744, 1252180, 2003488, 2504360, 4006976, 5008720, 8013952, 10017440, 16027904, 20034880, 40069760, 80139520]

約数ペア:

[(1, 80139520), (2, 40069760), (4, 20034880), (5, 16027904), (8, 10017440), (10, 8013952), (16, 5008720), (20, 4006976), (32, 2504360), (40, 2003488), (64, 1252180), (80, 1001744), (128, 626090), (137, 584960), (160, 500872), (256, 313045), (274, 292480), (320, 250436), (457, 175360), (548, 146240), (640, 125218), (685, 116992), (914, 87680), (1096, 73120), (1280, 62609), (1370, 58496), (1828, 43840), (2192, 36560), (2285, 35072), (2740, 29248), (3656, 21920), (4384, 18280), (4570, 17536), (5480, 14624), (7312, 10960), (8768, 9140)]