20782040405

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{557}}^1\times {\mathrm{859}}^1$

素因数の和:1518

約数の個数: 64

約数和(自身を含む): 30681607680

約数和(自身を除く): 9899567275

約数列:

[1, 5, 7, 17, 35, 73, 85, 119, 365, 511, 557, 595, 859, 1241, 2555, 2785, 3899, 4295, 6013, 6205, 8687, 9469, 14603, 19495, 30065, 40661, 43435, 47345, 62707, 66283, 73015, 102221, 203305, 284627, 313535, 331415, 438949, 478463, 511105, 691237, 1066019, 1423135, 2194745, 2392315, 3349241, 3456185, 4838659, 5330095, 7462133, 8133871, 16746205, 24193295, 34927799, 37310665, 40669355, 56937097, 174638995, 244494593, 284685485, 593772583, 1222472965, 2968862915, 4156408081, 20782040405]

約数ペア:

[(1, 20782040405), (5, 4156408081), (7, 2968862915), (17, 1222472965), (35, 593772583), (73, 284685485), (85, 244494593), (119, 174638995), (365, 56937097), (511, 40669355), (557, 37310665), (595, 34927799), (859, 24193295), (1241, 16746205), (2555, 8133871), (2785, 7462133), (3899, 5330095), (4295, 4838659), (6013, 3456185), (6205, 3349241), (8687, 2392315), (9469, 2194745), (14603, 1423135), (19495, 1066019), (30065, 691237), (40661, 511105), (43435, 478463), (47345, 438949), (62707, 331415), (66283, 313535), (73015, 284627), (102221, 203305)]