28590155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 11326645

約数列:

[1, 5, 11, 19, 55, 95, 109, 209, 251, 545, 1045, 1199, 1255, 2071, 2761, 4769, 5995, 10355, 13805, 22781, 23845, 27359, 52459, 113905, 136795, 262295, 300949, 519821, 1504745, 2599105, 5718031, 28590155]

約数ペア:

[(1, 28590155), (5, 5718031), (11, 2599105), (19, 1504745), (55, 519821), (95, 300949), (109, 262295), (209, 136795), (251, 113905), (545, 52459), (1045, 27359), (1199, 23845), (1255, 22781), (2071, 13805), (2761, 10355), (4769, 5995)]