7928904820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{86579}}^1$

素因数の和:86848

約数の個数: 48

約数和(自身を含む): 17599982400

約数和(自身を除く): 9671077580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 241, 380, 482, 964, 1205, 2410, 4579, 4820, 9158, 18316, 22895, 45790, 86579, 91580, 173158, 346316, 432895, 865790, 1645001, 1731580, 3290002, 6580004, 8225005, 16450010, 20865539, 32900020, 41731078, 83462156, 104327695, 208655390, 396445241, 417310780, 792890482, 1585780964, 1982226205, 3964452410, 7928904820]

約数ペア:

[(1, 7928904820), (2, 3964452410), (4, 1982226205), (5, 1585780964), (10, 792890482), (19, 417310780), (20, 396445241), (38, 208655390), (76, 104327695), (95, 83462156), (190, 41731078), (241, 32900020), (380, 20865539), (482, 16450010), (964, 8225005), (1205, 6580004), (2410, 3290002), (4579, 1731580), (4820, 1645001), (9158, 865790), (18316, 432895), (22895, 346316), (45790, 173158), (86579, 91580)]