19815950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5147}}^1$

素因数の和:5177

約数の個数: 48

約数和(自身を含む): 45961344

約数和(自身を除く): 26145394

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925, 3850, 5147, 10294, 25735, 36029, 51470, 56617, 72058, 113234, 128675, 180145, 257350, 283085, 360290, 396319, 566170, 792638, 900725, 1415425, 1801450, 1981595, 2830850, 3963190, 9907975, 19815950]

約数ペア:

[(1, 19815950), (2, 9907975), (5, 3963190), (7, 2830850), (10, 1981595), (11, 1801450), (14, 1415425), (22, 900725), (25, 792638), (35, 566170), (50, 396319), (55, 360290), (70, 283085), (77, 257350), (110, 180145), (154, 128675), (175, 113234), (275, 72058), (350, 56617), (385, 51470), (550, 36029), (770, 25735), (1925, 10294), (3850, 5147)]