216995275

素因数分解:

$5^2\times 7^2\times {\mathrm{307}}^1\times {\mathrm{577}}^1$

素因数の和:908

約数の個数: 36

約数和(自身を含む): 314568408

約数和(自身を除く): 97573133

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 307, 577, 1225, 1535, 2149, 2885, 4039, 7675, 10745, 14425, 15043, 20195, 28273, 53725, 75215, 100975, 141365, 177139, 376075, 706825, 885695, 1239973, 4428475, 6199865, 8679811, 30999325, 43399055, 216995275]

約数ペア:

[(1, 216995275), (5, 43399055), (7, 30999325), (25, 8679811), (35, 6199865), (49, 4428475), (175, 1239973), (245, 885695), (307, 706825), (577, 376075), (1225, 177139), (1535, 141365), (2149, 100975), (2885, 75215), (4039, 53725), (7675, 28273), (10745, 20195), (14425, 15043)]