28219345

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 44290368

約数和(自身を除く): 16071023

約数列:

[1, 5, 7, 11, 35, 37, 49, 55, 77, 185, 245, 259, 283, 385, 407, 539, 1295, 1415, 1813, 1981, 2035, 2695, 2849, 3113, 9065, 9905, 10471, 13867, 14245, 15565, 19943, 21791, 52355, 69335, 73297, 99715, 108955, 115181, 152537, 366485, 513079, 575905, 762685, 806267, 2565395, 4031335, 5643869, 28219345]

約数ペア:

[(1, 28219345), (5, 5643869), (7, 4031335), (11, 2565395), (35, 806267), (37, 762685), (49, 575905), (55, 513079), (77, 366485), (185, 152537), (245, 115181), (259, 108955), (283, 99715), (385, 73297), (407, 69335), (539, 52355), (1295, 21791), (1415, 19943), (1813, 15565), (1981, 14245), (2035, 13867), (2695, 10471), (2849, 9905), (3113, 9065)]