80545940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1669}}^1$

素因数の和:1824

約数の個数: 48

約数和(自身を含む): 179558400

約数和(自身を除く): 99012460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 127, 190, 254, 380, 508, 635, 1270, 1669, 2413, 2540, 3338, 4826, 6676, 8345, 9652, 12065, 16690, 24130, 31711, 33380, 48260, 63422, 126844, 158555, 211963, 317110, 423926, 634220, 847852, 1059815, 2119630, 4027297, 4239260, 8054594, 16109188, 20136485, 40272970, 80545940]

約数ペア:

[(1, 80545940), (2, 40272970), (4, 20136485), (5, 16109188), (10, 8054594), (19, 4239260), (20, 4027297), (38, 2119630), (76, 1059815), (95, 847852), (127, 634220), (190, 423926), (254, 317110), (380, 211963), (508, 158555), (635, 126844), (1270, 63422), (1669, 48260), (2413, 33380), (2540, 31711), (3338, 24130), (4826, 16690), (6676, 12065), (8345, 9652)]