840950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{139}}^1$

素因数の和:173

約数の個数: 36

約数和(自身を含む): 1731660

約数和(自身を除く): 890710

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 139, 242, 275, 278, 550, 605, 695, 1210, 1390, 1529, 3025, 3058, 3475, 6050, 6950, 7645, 15290, 16819, 33638, 38225, 76450, 84095, 168190, 420475, 840950]

約数ペア:

[(1, 840950), (2, 420475), (5, 168190), (10, 84095), (11, 76450), (22, 38225), (25, 33638), (50, 16819), (55, 15290), (110, 7645), (121, 6950), (139, 6050), (242, 3475), (275, 3058), (278, 3025), (550, 1529), (605, 1390), (695, 1210)]