155911525

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 250678400

約数和(自身を除く): 94766875

約数列:

[1, 5, 7, 11, 25, 35, 37, 55, 77, 121, 175, 185, 199, 259, 275, 385, 407, 605, 847, 925, 995, 1295, 1393, 1925, 2035, 2189, 2849, 3025, 4235, 4477, 4975, 6475, 6965, 7363, 10175, 10945, 14245, 15323, 21175, 22385, 24079, 31339, 34825, 36815, 51541, 54725, 71225, 76615, 80993, 111925, 120395, 156695, 168553, 184075, 257705, 383075, 404965, 566951, 601975, 783475, 842765, 890923, 1288525, 2024825, 2834755, 4213825, 4454615, 6236461, 14173775, 22273075, 31182305, 155911525]

約数ペア:

[(1, 155911525), (5, 31182305), (7, 22273075), (11, 14173775), (25, 6236461), (35, 4454615), (37, 4213825), (55, 2834755), (77, 2024825), (121, 1288525), (175, 890923), (185, 842765), (199, 783475), (259, 601975), (275, 566951), (385, 404965), (407, 383075), (605, 257705), (847, 184075), (925, 168553), (995, 156695), (1295, 120395), (1393, 111925), (1925, 80993), (2035, 76615), (2189, 71225), (2849, 54725), (3025, 51541), (4235, 36815), (4477, 34825), (4975, 31339), (6475, 24079), (6965, 22385), (7363, 21175), (10175, 15323), (10945, 14245)]