20780916

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{10247}}^1$

素因数の和:10280

約数の個数: 36

約数和(自身を含む): 52510752

約数和(自身を除く): 31729836

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 10247, 20494, 30741, 40988, 61482, 122964, 133211, 266422, 399633, 532844, 799266, 1598532, 1731743, 3463486, 5195229, 6926972, 10390458, 20780916]

約数ペア:

[(1, 20780916), (2, 10390458), (3, 6926972), (4, 5195229), (6, 3463486), (12, 1731743), (13, 1598532), (26, 799266), (39, 532844), (52, 399633), (78, 266422), (156, 133211), (169, 122964), (338, 61482), (507, 40988), (676, 30741), (1014, 20494), (2028, 10247)]