78986908

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19727}}^1$

素因数の和:19762

約数の個数: 48

約数和(自身を含む): 185601024

約数和(自身を除く): 106614116

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 19727, 39454, 78908, 138089, 216997, 256451, 276178, 433994, 512902, 552356, 867988, 1025804, 1518979, 1795157, 2820961, 3037958, 3590314, 5641922, 6075916, 7180628, 11283844, 19746727, 39493454, 78986908]

約数ペア:

[(1, 78986908), (2, 39493454), (4, 19746727), (7, 11283844), (11, 7180628), (13, 6075916), (14, 5641922), (22, 3590314), (26, 3037958), (28, 2820961), (44, 1795157), (52, 1518979), (77, 1025804), (91, 867988), (143, 552356), (154, 512902), (182, 433994), (286, 276178), (308, 256451), (364, 216997), (572, 138089), (1001, 78908), (2002, 39454), (4004, 19727)]