28918655

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^2\times {\mathrm{71}}^1$

素因数の和:211

約数の個数: 24

約数和(自身を含む): 37104480

約数和(自身を除く): 8185825

約数列:

[1, 5, 29, 53, 71, 145, 265, 355, 1537, 2059, 2809, 3763, 7685, 10295, 14045, 18815, 81461, 109127, 199439, 407305, 545635, 997195, 5783731, 28918655]

約数ペア:

[(1, 28918655), (5, 5783731), (29, 997195), (53, 545635), (71, 407305), (145, 199439), (265, 109127), (355, 81461), (1537, 18815), (2059, 14045), (2809, 10295), (3763, 7685)]