1639089910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1\times {\mathrm{457}}^1$

素因数の和:965

約数の個数: 64

約数和(自身を含む): 3192076800

約数和(自身を除く): 1552986890

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 439, 457, 817, 878, 914, 1634, 2195, 2285, 4085, 4390, 4570, 8170, 8341, 8683, 16682, 17366, 18877, 19651, 37754, 39302, 41705, 43415, 83410, 86830, 94385, 98255, 188770, 196510, 200623, 358663, 373369, 401246, 717326, 746738, 1003115, 1793315, 1866845, 2006230, 3586630, 3733690, 3811837, 7623674, 8626789, 17253578, 19059185, 38118370, 43133945, 86267890, 163908991, 327817982, 819544955, 1639089910]

約数ペア:

[(1, 1639089910), (2, 819544955), (5, 327817982), (10, 163908991), (19, 86267890), (38, 43133945), (43, 38118370), (86, 19059185), (95, 17253578), (190, 8626789), (215, 7623674), (430, 3811837), (439, 3733690), (457, 3586630), (817, 2006230), (878, 1866845), (914, 1793315), (1634, 1003115), (2195, 746738), (2285, 717326), (4085, 401246), (4390, 373369), (4570, 358663), (8170, 200623), (8341, 196510), (8683, 188770), (16682, 98255), (17366, 94385), (18877, 86830), (19651, 83410), (37754, 43415), (39302, 41705)]