31115150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:210

約数の個数: 72

約数和(自身を含む): 65803080

約数和(自身を除く): 34687930

約数列:

[1, 2, 5, 10, 11, 22, 25, 37, 50, 55, 74, 110, 121, 139, 185, 242, 275, 278, 370, 407, 550, 605, 695, 814, 925, 1210, 1390, 1529, 1850, 2035, 3025, 3058, 3475, 4070, 4477, 5143, 6050, 6950, 7645, 8954, 10175, 10286, 15290, 16819, 20350, 22385, 25715, 33638, 38225, 44770, 51430, 56573, 76450, 84095, 111925, 113146, 128575, 168190, 223850, 257150, 282865, 420475, 565730, 622303, 840950, 1244606, 1414325, 2828650, 3111515, 6223030, 15557575, 31115150]

約数ペア:

[(1, 31115150), (2, 15557575), (5, 6223030), (10, 3111515), (11, 2828650), (22, 1414325), (25, 1244606), (37, 840950), (50, 622303), (55, 565730), (74, 420475), (110, 282865), (121, 257150), (139, 223850), (185, 168190), (242, 128575), (275, 113146), (278, 111925), (370, 84095), (407, 76450), (550, 56573), (605, 51430), (695, 44770), (814, 38225), (925, 33638), (1210, 25715), (1390, 22385), (1529, 20350), (1850, 16819), (2035, 15290), (3025, 10286), (3058, 10175), (3475, 8954), (4070, 7645), (4477, 6950), (5143, 6050)]