518204560

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:592

約数の個数: 80

約数和(自身を含む): 1225046592

約数和(自身を除く): 706842032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 197, 251, 262, 394, 502, 524, 655, 788, 985, 1004, 1048, 1255, 1310, 1576, 1970, 2008, 2096, 2510, 2620, 3152, 3940, 4016, 5020, 5240, 7880, 10040, 10480, 15760, 20080, 25807, 32881, 49447, 51614, 65762, 98894, 103228, 129035, 131524, 164405, 197788, 206456, 247235, 258070, 263048, 328810, 395576, 412912, 494470, 516140, 526096, 657620, 791152, 988940, 1032280, 1315240, 1977880, 2064560, 2630480, 3955760, 6477557, 12955114, 25910228, 32387785, 51820456, 64775570, 103640912, 129551140, 259102280, 518204560]

約数ペア:

[(1, 518204560), (2, 259102280), (4, 129551140), (5, 103640912), (8, 64775570), (10, 51820456), (16, 32387785), (20, 25910228), (40, 12955114), (80, 6477557), (131, 3955760), (197, 2630480), (251, 2064560), (262, 1977880), (394, 1315240), (502, 1032280), (524, 988940), (655, 791152), (788, 657620), (985, 526096), (1004, 516140), (1048, 494470), (1255, 412912), (1310, 395576), (1576, 328810), (1970, 263048), (2008, 258070), (2096, 247235), (2510, 206456), (2620, 197788), (3152, 164405), (3940, 131524), (4016, 129035), (5020, 103228), (5240, 98894), (7880, 65762), (10040, 51614), (10480, 49447), (15760, 32881), (20080, 25807)]